{
    "data": [
        {
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            "cbsnr": "10", 
            "code": "G1ZK", 
            "id": 3851886, 
            "indicator": "Grafische bedrijven", 
            "naam": "DELFZIJL", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10426", 
            "cbsnr": "14", 
            "code": "G1ZK", 
            "id": 3852089, 
            "indicator": "Grafische bedrijven", 
            "naam": "GRONINGEN", 
            "value": 60.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10950", 
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            "code": "G1ZK", 
            "id": 3852584, 
            "indicator": "Grafische bedrijven", 
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            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11292", 
            "cbsnr": "47", 
            "code": "G1ZK", 
            "id": 3853155, 
            "indicator": "Grafische bedrijven", 
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            "value": 6.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10453", 
            "cbsnr": "52", 
            "code": "G1ZK", 
            "id": 3853331, 
            "indicator": "Grafische bedrijven", 
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            "value": 8.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10865", 
            "cbsnr": "64", 
            "code": "G1ZK", 
            "id": 3853650, 
            "indicator": "Grafische bedrijven", 
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            "value": 3.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11226", 
            "cbsnr": "69", 
            "code": "G1ZK", 
            "id": 3853856, 
            "indicator": "Grafische bedrijven", 
            "naam": "FRANEKER", 
            "value": 6.0, 
            "year": 1930
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        {
            "amsterdam_code": "10036", 
            "cbsnr": "71", 
            "code": "G1ZK", 
            "id": 3853973, 
            "indicator": "Grafische bedrijven", 
            "naam": "GAASTERLAND", 
            "value": 3.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10909", 
            "cbsnr": "72", 
            "code": "G1ZK", 
            "id": 3854069, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
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            "cbsnr": "73", 
            "code": "G1ZK", 
            "id": 3854189, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "11228", 
            "cbsnr": "80", 
            "code": "G1ZK", 
            "id": 3854531, 
            "indicator": "Grafische bedrijven", 
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            "value": 31.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11421", 
            "cbsnr": "91", 
            "code": "G1ZK", 
            "id": 3855002, 
            "indicator": "Grafische bedrijven", 
            "naam": "SNEEK", 
            "value": 8.0, 
            "year": 1930
        }, 
        {
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            "cbsnr": "106", 
            "code": "G1ZK", 
            "id": 3855530, 
            "indicator": "Grafische bedrijven", 
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            "value": 13.0, 
            "year": 1930
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        {
            "amsterdam_code": "11180", 
            "cbsnr": "114", 
            "code": "G1ZK", 
            "id": 3855851, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "G1ZK", 
            "id": 3856055, 
            "indicator": "Grafische bedrijven", 
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            "value": 6.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11204", 
            "cbsnr": "119", 
            "code": "G1ZK", 
            "id": 3856183, 
            "indicator": "Grafische bedrijven", 
            "naam": "MEPPEL", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "11320", 
            "cbsnr": "122", 
            "code": "G1ZK", 
            "id": 3856354, 
            "indicator": "Grafische bedrijven", 
            "naam": "ODOORN", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11053", 
            "cbsnr": "141", 
            "code": "G1ZK", 
            "id": 3856881, 
            "indicator": "Grafische bedrijven", 
            "naam": "ALMELO", 
            "value": 11.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10326", 
            "cbsnr": "147", 
            "code": "G1ZK", 
            "id": 3857142, 
            "indicator": "Grafische bedrijven", 
            "naam": "BORNE", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10899", 
            "cbsnr": "150", 
            "code": "G1ZK", 
            "id": 3857306, 
            "indicator": "Grafische bedrijven", 
            "naam": "DEVENTER", 
            "value": 15.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10364", 
            "cbsnr": "153", 
            "code": "G1ZK", 
            "id": 3857501, 
            "indicator": "Grafische bedrijven", 
            "naam": "ENSCHEDE", 
            "value": 14.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10806", 
            "cbsnr": "163", 
            "code": "G1ZK", 
            "id": 3857867, 
            "indicator": "Grafische bedrijven", 
            "naam": "HELLENDOORN", 
            "value": 3.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10907", 
            "cbsnr": "164", 
            "code": "G1ZK", 
            "id": 3857979, 
            "indicator": "Grafische bedrijven", 
            "naam": "HENGELO O", 
            "value": 10.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10253", 
            "cbsnr": "166", 
            "code": "G1ZK", 
            "id": 3858138, 
            "indicator": "Grafische bedrijven", 
            "naam": "KAMPEN", 
            "value": 3.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11166", 
            "cbsnr": "168", 
            "code": "G1ZK", 
            "id": 3858279, 
            "indicator": "Grafische bedrijven", 
            "naam": "LOSSER", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10358", 
            "cbsnr": "178", 
            "code": "G1ZK", 
            "id": 3858724, 
            "indicator": "Grafische bedrijven", 
            "naam": "RIJSSEN", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10546", 
            "cbsnr": "181", 
            "code": "G1ZK", 
            "id": 3858870, 
            "indicator": "Grafische bedrijven", 
            "naam": "STEENWIJK", 
            "value": 4.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10093", 
            "cbsnr": "193", 
            "code": "G1ZK", 
            "id": 3859296, 
            "indicator": "Grafische bedrijven", 
            "naam": "ZWOLLE", 
            "value": 24.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11075", 
            "cbsnr": "200", 
            "code": "G1ZK", 
            "id": 3859528, 
            "indicator": "Grafische bedrijven", 
            "naam": "APELDOORN", 
            "value": 26.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10795", 
            "cbsnr": "202", 
            "code": "G1ZK", 
            "id": 3859702, 
            "indicator": "Grafische bedrijven", 
            "naam": "ARNHEM", 
            "value": 53.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10342", 
            "cbsnr": "216", 
            "code": "G1ZK", 
            "id": 3860247, 
            "indicator": "Grafische bedrijven", 
            "naam": "CULEMBORG", 
            "value": 4.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10786", 
            "cbsnr": "243", 
            "code": "G1ZK", 
            "id": 3861050, 
            "indicator": "Grafische bedrijven", 
            "naam": "HARDERWIJK", 
            "value": 5.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11209", 
            "cbsnr": "268", 
            "code": "G1ZK", 
            "id": 3861824, 
            "indicator": "Grafische bedrijven", 
            "naam": "NIJMEGEN", 
            "value": 45.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11325", 
            "cbsnr": "274", 
            "code": "G1ZK", 
            "id": 3862109, 
            "indicator": "Grafische bedrijven", 
            "naam": "RENKUM", 
            "value": 6.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11355", 
            "cbsnr": "275", 
            "code": "G1ZK", 
            "id": 3862242, 
            "indicator": "Grafische bedrijven", 
            "naam": "RHEDEN", 
            "value": 8.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10027", 
            "cbsnr": "281", 
            "code": "G1ZK", 
            "id": 3862496, 
            "indicator": "Grafische bedrijven", 
            "naam": "TIEL", 
            "value": 4.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11010", 
            "cbsnr": "289", 
            "code": "G1ZK", 
            "id": 3862799, 
            "indicator": "Grafische bedrijven", 
            "naam": "WAGENINGEN", 
            "value": 4.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10254", 
            "cbsnr": "301", 
            "code": "G1ZK", 
            "id": 3863215, 
            "indicator": "Grafische bedrijven", 
            "naam": "ZUTPHEN", 
            "value": 10.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10948", 
            "cbsnr": "307", 
            "code": "G1ZK", 
            "id": 3863402, 
            "indicator": "Grafische bedrijven", 
            "naam": "AMERSFOORT", 
            "value": 18.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11411", 
            "cbsnr": "308", 
            "code": "G1ZK", 
            "id": 3863518, 
            "indicator": "Grafische bedrijven", 
            "naam": "BAARN", 
            "value": 10.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10722", 
            "cbsnr": "344", 
            "code": "G1ZK", 
            "id": 3864554, 
            "indicator": "Grafische bedrijven", 
            "naam": "UTRECHT", 
            "value": 92.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11052", 
            "cbsnr": "345", 
            "code": "G1ZK", 
            "id": 3864684, 
            "indicator": "Grafische bedrijven", 
            "naam": "VEENENDAAL", 
            "value": 4.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10324", 
            "cbsnr": "355", 
            "code": "G1ZK", 
            "id": 3865029, 
            "indicator": "Grafische bedrijven", 
            "naam": "ZEIST", 
            "value": 10.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10527", 
            "cbsnr": "361", 
            "code": "G1ZK", 
            "id": 3865242, 
            "indicator": "Grafische bedrijven", 
            "naam": "ALKMAAR", 
            "value": 25.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11150", 
            "cbsnr": "363", 
            "code": "G1ZK", 
            "id": 3865438, 
            "indicator": "Grafische bedrijven", 
            "naam": "AMSTERDAM", 
            "value": 400.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10850", 
            "cbsnr": "377", 
            "code": "G1ZK", 
            "id": 3865993, 
            "indicator": "Grafische bedrijven", 
            "naam": "BLOEMENDAAL", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10281", 
            "cbsnr": "381", 
            "code": "G1ZK", 
            "id": 3866191, 
            "indicator": "Grafische bedrijven", 
            "naam": "BUSSUM", 
            "value": 19.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10884", 
            "cbsnr": "385", 
            "code": "G1ZK", 
            "id": 3866382, 
            "indicator": "Grafische bedrijven", 
            "naam": "EDAM-VOLENDAM", 
            "value": 4.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10729", 
            "cbsnr": "388", 
            "code": "G1ZK", 
            "id": 3866532, 
            "indicator": "Grafische bedrijven", 
            "naam": "ENKHUIZEN", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10357", 
            "cbsnr": "392", 
            "code": "G1ZK", 
            "id": 3866710, 
            "indicator": "Grafische bedrijven", 
            "naam": "HAARLEM", 
            "value": 64.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10285", 
            "cbsnr": "400", 
            "code": "G1ZK", 
            "id": 3867037, 
            "indicator": "Grafische bedrijven", 
            "naam": "DEN HELDER", 
            "value": 14.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11285", 
            "cbsnr": "402", 
            "code": "G1ZK", 
            "id": 3867192, 
            "indicator": "Grafische bedrijven", 
            "naam": "HILVERSUM", 
            "value": 40.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11392", 
            "cbsnr": "405", 
            "code": "G1ZK", 
            "id": 3867370, 
            "indicator": "Grafische bedrijven", 
            "naam": "HOORN", 
            "value": 13.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11066", 
            "cbsnr": "439", 
            "code": "G1ZK", 
            "id": 3868182, 
            "indicator": "Grafische bedrijven", 
            "naam": "PURMEREND", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10620", 
            "cbsnr": "453", 
            "code": "G1ZK", 
            "id": 3868558, 
            "indicator": "Grafische bedrijven", 
            "naam": "VELSEN", 
            "value": 7.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10773", 
            "cbsnr": "457", 
            "code": "G1ZK", 
            "id": 3868722, 
            "indicator": "Grafische bedrijven", 
            "naam": "WEESP", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10361", 
            "cbsnr": "468", 
            "code": "G1ZK", 
            "id": 3869041, 
            "indicator": "Grafische bedrijven", 
            "naam": "WORMERVEER", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11044", 
            "cbsnr": "471", 
            "code": "G1ZK", 
            "id": 3869189, 
            "indicator": "Grafische bedrijven", 
            "naam": "ZAANDAM", 
            "value": 12.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11327", 
            "cbsnr": "482", 
            "code": "G1ZK", 
            "id": 3869489, 
            "indicator": "Grafische bedrijven", 
            "naam": "ALBLASSERDAM", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10928", 
            "cbsnr": "503", 
            "code": "G1ZK", 
            "id": 3870105, 
            "indicator": "Grafische bedrijven", 
            "naam": "DELFT", 
            "value": 22.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11157", 
            "cbsnr": "505", 
            "code": "G1ZK", 
            "id": 3870275, 
            "indicator": "Grafische bedrijven", 
            "naam": "DORDRECHT", 
            "value": 30.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10942", 
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            "code": "G1ZK", 
            "id": 3870526, 
            "indicator": "Grafische bedrijven", 
            "naam": "GORINCHEM", 
            "value": 11.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10302", 
            "cbsnr": "513", 
            "code": "G1ZK", 
            "id": 3870665, 
            "indicator": "Grafische bedrijven", 
            "naam": "GOUDA", 
            "value": 17.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11434", 
            "cbsnr": "518", 
            "code": "G1ZK", 
            "id": 3870920, 
            "indicator": "Grafische bedrijven", 
            "naam": "'S GRAVENHAGE", 
            "value": 346.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10707", 
            "cbsnr": "537", 
            "code": "G1ZK", 
            "id": 3871500, 
            "indicator": "Grafische bedrijven", 
            "naam": "KATWIJK", 
            "value": 3.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10685", 
            "cbsnr": "545", 
            "code": "G1ZK", 
            "id": 3871791, 
            "indicator": "Grafische bedrijven", 
            "naam": "LEERDAM", 
            "value": 3.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10702", 
            "cbsnr": "546", 
            "code": "G1ZK", 
            "id": 3871919, 
            "indicator": "Grafische bedrijven", 
            "naam": "LEIDEN", 
            "value": 45.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10880", 
            "cbsnr": "556", 
            "code": "G1ZK", 
            "id": 3872310, 
            "indicator": "Grafische bedrijven", 
            "naam": "MAASSLUIS", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10646", 
            "cbsnr": "597", 
            "code": "G1ZK", 
            "id": 3873451, 
            "indicator": "Grafische bedrijven", 
            "naam": "RIDDERKERK", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10345", 
            "cbsnr": "599", 
            "code": "G1ZK", 
            "id": 3873596, 
            "indicator": "Grafische bedrijven", 
            "naam": "ROTTERDAM", 
            "value": 265.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11260", 
            "cbsnr": "606", 
            "code": "G1ZK", 
            "id": 3873917, 
            "indicator": "Grafische bedrijven", 
            "naam": "SCHIEDAM", 
            "value": 11.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11331", 
            "cbsnr": "610", 
            "code": "G1ZK", 
            "id": 3874119, 
            "indicator": "Grafische bedrijven", 
            "naam": "SLIEDRECHT", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10811", 
            "cbsnr": "622", 
            "code": "G1ZK", 
            "id": 3874461, 
            "indicator": "Grafische bedrijven", 
            "naam": "VLAARDINGEN", 
            "value": 7.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10974", 
            "cbsnr": "632", 
            "code": "G1ZK", 
            "id": 3874814, 
            "indicator": "Grafische bedrijven", 
            "naam": "WOERDEN", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10974", 
            "cbsnr": "632", 
            "code": "G1ZK", 
            "id": 3874923, 
            "indicator": "Grafische bedrijven", 
            "naam": "WOERDEN", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10468", 
            "cbsnr": "642", 
            "code": "G1ZK", 
            "id": 3875273, 
            "indicator": "Grafische bedrijven", 
            "naam": "ZWIJNDRECHT", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10674", 
            "cbsnr": "664", 
            "code": "G1ZK", 
            "id": 3875597, 
            "indicator": "Grafische bedrijven", 
            "naam": "GOES", 
            "value": 8.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10122", 
            "cbsnr": "687", 
            "code": "G1ZK", 
            "id": 3875835, 
            "indicator": "Grafische bedrijven", 
            "naam": "MIDDELBURG", 
            "value": 21.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10704", 
            "cbsnr": "715", 
            "code": "G1ZK", 
            "id": 3876279, 
            "indicator": "Grafische bedrijven", 
            "naam": "TERNEUZEN", 
            "value": 6.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10270", 
            "cbsnr": "718", 
            "code": "G1ZK", 
            "id": 3876452, 
            "indicator": "Grafische bedrijven", 
            "naam": "VLISSINGEN", 
            "value": 9.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10843", 
            "cbsnr": "732", 
            "code": "G1ZK", 
            "id": 3876660, 
            "indicator": "Grafische bedrijven", 
            "naam": "ZIERIKZEE", 
            "value": 15.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11037", 
            "cbsnr": "748", 
            "code": "G1ZK", 
            "id": 3877011, 
            "indicator": "Grafische bedrijven", 
            "naam": "BERGEN OP ZOOM", 
            "value": 15.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10083", 
            "cbsnr": "757", 
            "code": "G1ZK", 
            "id": 3877340, 
            "indicator": "Grafische bedrijven", 
            "naam": "BOXTEL", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10154", 
            "cbsnr": "758", 
            "code": "G1ZK", 
            "id": 3877461, 
            "indicator": "Grafische bedrijven", 
            "naam": "BREDA", 
            "value": 21.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11412", 
            "cbsnr": "766", 
            "code": "G1ZK", 
            "id": 3877746, 
            "indicator": "Grafische bedrijven", 
            "naam": "DONGEN", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11298", 
            "cbsnr": "772", 
            "code": "G1ZK", 
            "id": 3877998, 
            "indicator": "Grafische bedrijven", 
            "naam": "EINDHOVEN", 
            "value": 44.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10932", 
            "cbsnr": "794", 
            "code": "G1ZK", 
            "id": 3878683, 
            "indicator": "Grafische bedrijven", 
            "naam": "HELMOND", 
            "value": 6.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10054", 
            "cbsnr": "796", 
            "code": "G1ZK", 
            "id": 3878834, 
            "indicator": "Grafische bedrijven", 
            "naam": "'S HERTOGENBOSCH", 
            "value": 37.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11259", 
            "cbsnr": "809", 
            "code": "G1ZK", 
            "id": 3879285, 
            "indicator": "Grafische bedrijven", 
            "naam": "LOON OP ZAND", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11280", 
            "cbsnr": "826", 
            "code": "G1ZK", 
            "id": 3879821, 
            "indicator": "Grafische bedrijven", 
            "naam": "OOSTERHOUT", 
            "value": 5.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10834", 
            "cbsnr": "828", 
            "code": "G1ZK", 
            "id": 3879964, 
            "indicator": "Grafische bedrijven", 
            "naam": "OSS", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11391", 
            "cbsnr": "834", 
            "code": "G1ZK", 
            "id": 3880196, 
            "indicator": "Grafische bedrijven", 
            "naam": "RAAMSDONK", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10407", 
            "cbsnr": "838", 
            "code": "G1ZK", 
            "id": 3880374, 
            "indicator": "Grafische bedrijven", 
            "naam": "ROOSENDAAL EN NISPEN", 
            "value": 14.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10792", 
            "cbsnr": "855", 
            "code": "G1ZK", 
            "id": 3880916, 
            "indicator": "Grafische bedrijven", 
            "naam": "TILBURG", 
            "value": 27.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11224", 
            "cbsnr": "865", 
            "code": "G1ZK", 
            "id": 3881294, 
            "indicator": "Grafische bedrijven", 
            "naam": "VUGHT", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10902", 
            "cbsnr": "917", 
            "code": "G1ZK", 
            "id": 3882660, 
            "indicator": "Grafische bedrijven", 
            "naam": "HEERLEN", 
            "value": 13.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10313", 
            "cbsnr": "928", 
            "code": "G1ZK", 
            "id": 3883029, 
            "indicator": "Grafische bedrijven", 
            "naam": "KERKRADE", 
            "value": 6.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10182", 
            "cbsnr": "935", 
            "code": "G1ZK", 
            "id": 3883333, 
            "indicator": "Grafische bedrijven", 
            "naam": "MAASTRICHT", 
            "value": 32.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11313", 
            "cbsnr": "957", 
            "code": "G1ZK", 
            "id": 3884078, 
            "indicator": "Grafische bedrijven", 
            "naam": "ROERMOND", 
            "value": 6.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11230", 
            "cbsnr": "968", 
            "code": "G1ZK", 
            "id": 3884480, 
            "indicator": "Grafische bedrijven", 
            "naam": "SITTARD", 
            "value": 7.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10477", 
            "cbsnr": "983", 
            "code": "G1ZK", 
            "id": 3885053, 
            "indicator": "Grafische bedrijven", 
            "naam": "VENLO", 
            "value": 13.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10227", 
            "cbsnr": "1081", 
            "code": "G1ZK", 
            "id": 3885460, 
            "indicator": "Grafische bedrijven", 
            "naam": "HILLEGERSBERG", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10410", 
            "cbsnr": "1083", 
            "code": "G1ZK", 
            "id": 3885539, 
            "indicator": "Grafische bedrijven", 
            "naam": "HOOGEZAND", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11045", 
            "cbsnr": "1106", 
            "code": "G1ZK", 
            "id": 3885617, 
            "indicator": "Grafische bedrijven", 
            "naam": "LONNEKER", 
            "value": 3.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10080", 
            "cbsnr": "1168", 
            "code": "G1ZK", 
            "id": 3885698, 
            "indicator": "Grafische bedrijven", 
            "naam": "SAPPEMEER", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10825", 
            "cbsnr": "1225", 
            "code": "G1ZK", 
            "id": 3885781, 
            "indicator": "Grafische bedrijven", 
            "naam": "WILDERVANK", 
            "value": 7.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10610", 
            "cbsnr": "1250", 
            "code": "G1ZK", 
            "id": 3885873, 
            "indicator": "Grafische bedrijven", 
            "naam": "ONSTWEDDE", 
            "value": 3.0, 
            "year": 1930
        }
    ]
}