{
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            "indicator": "Grafische bedrijven", 
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        {
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            "indicator": "Grafische bedrijven", 
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        {
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            "indicator": "Grafische bedrijven", 
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        {
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            "indicator": "Grafische bedrijven", 
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            "indicator": "Grafische bedrijven", 
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            "code": "G2TW", 
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            "indicator": "Grafische bedrijven", 
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        {
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            "indicator": "Grafische bedrijven", 
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            "code": "G2TW", 
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            "indicator": "Grafische bedrijven", 
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            "code": "G2TW", 
            "id": 3855008, 
            "indicator": "Grafische bedrijven", 
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            "indicator": "Grafische bedrijven", 
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            "indicator": "Grafische bedrijven", 
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        {
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            "id": 3856188, 
            "indicator": "Grafische bedrijven", 
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        {
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            "indicator": "Grafische bedrijven", 
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        {
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            "code": "G2TW", 
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            "indicator": "Grafische bedrijven", 
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        {
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            "code": "G2TW", 
            "id": 3857507, 
            "indicator": "Grafische bedrijven", 
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        {
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            "id": 3857870, 
            "indicator": "Grafische bedrijven", 
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        {
            "amsterdam_code": "10907", 
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            "id": 3857984, 
            "indicator": "Grafische bedrijven", 
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        {
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            "code": "G2TW", 
            "id": 3858144, 
            "indicator": "Grafische bedrijven", 
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            "value": 4.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11166", 
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            "code": "G2TW", 
            "id": 3858282, 
            "indicator": "Grafische bedrijven", 
            "naam": "LOSSER", 
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            "year": 1930
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        {
            "amsterdam_code": "11100", 
            "cbsnr": "173", 
            "code": "G2TW", 
            "id": 3858516, 
            "indicator": "Grafische bedrijven", 
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        {
            "amsterdam_code": "10546", 
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            "code": "G2TW", 
            "id": 3858875, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "cbsnr": "193", 
            "code": "G2TW", 
            "id": 3859302, 
            "indicator": "Grafische bedrijven", 
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        {
            "amsterdam_code": "11075", 
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            "code": "G2TW", 
            "id": 3859534, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "cbsnr": "202", 
            "code": "G2TW", 
            "id": 3859708, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "G2TW", 
            "id": 3861054, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "G2TW", 
            "id": 3861830, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
            "amsterdam_code": "11325", 
            "cbsnr": "274", 
            "code": "G2TW", 
            "id": 3862113, 
            "indicator": "Grafische bedrijven", 
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        {
            "amsterdam_code": "11355", 
            "cbsnr": "275", 
            "code": "G2TW", 
            "id": 3862247, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
            "amsterdam_code": "10027", 
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            "code": "G2TW", 
            "id": 3862500, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "cbsnr": "301", 
            "code": "G2TW", 
            "id": 3863221, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
            "amsterdam_code": "10948", 
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            "id": 3863407, 
            "indicator": "Grafische bedrijven", 
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            "code": "G2TW", 
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            "indicator": "Grafische bedrijven", 
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            "code": "G2TW", 
            "id": 3864561, 
            "indicator": "Grafische bedrijven", 
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        {
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            "code": "G2TW", 
            "id": 3864687, 
            "indicator": "Grafische bedrijven", 
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        {
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            "code": "G2TW", 
            "id": 3865034, 
            "indicator": "Grafische bedrijven", 
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        {
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            "code": "G2TW", 
            "id": 3865248, 
            "indicator": "Grafische bedrijven", 
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        {
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            "cbsnr": "363", 
            "code": "G2TW", 
            "id": 3865446, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "10272", 
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            "code": "G2TW", 
            "id": 3865870, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "G2TW", 
            "id": 3866196, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "G2TW", 
            "id": 3866386, 
            "indicator": "Grafische bedrijven", 
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        }, 
        {
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            "code": "G2TW", 
            "id": 3866718, 
            "indicator": "Grafische bedrijven", 
            "naam": "HAARLEM", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "10285", 
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            "code": "G2TW", 
            "id": 3867043, 
            "indicator": "Grafische bedrijven", 
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        }, 
        {
            "amsterdam_code": "11285", 
            "cbsnr": "402", 
            "code": "G2TW", 
            "id": 3867197, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "11392", 
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            "code": "G2TW", 
            "id": 3867375, 
            "indicator": "Grafische bedrijven", 
            "naam": "HOORN", 
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            "year": 1930
        }, 
        {
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            "cbsnr": "439", 
            "code": "G2TW", 
            "id": 3868187, 
            "indicator": "Grafische bedrijven", 
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            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10620", 
            "cbsnr": "453", 
            "code": "G2TW", 
            "id": 3868563, 
            "indicator": "Grafische bedrijven", 
            "naam": "VELSEN", 
            "value": 5.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10773", 
            "cbsnr": "457", 
            "code": "G2TW", 
            "id": 3868727, 
            "indicator": "Grafische bedrijven", 
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            "value": 2.0, 
            "year": 1930
        }, 
        {
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            "code": "G2TW", 
            "id": 3869046, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
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            "code": "G2TW", 
            "id": 3869194, 
            "indicator": "Grafische bedrijven", 
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            "value": 9.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11327", 
            "cbsnr": "482", 
            "code": "G2TW", 
            "id": 3869491, 
            "indicator": "Grafische bedrijven", 
            "naam": "ALBLASSERDAM", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
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            "cbsnr": "503", 
            "code": "G2TW", 
            "id": 3870110, 
            "indicator": "Grafische bedrijven", 
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            "value": 12.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11157", 
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            "code": "G2TW", 
            "id": 3870281, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
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            "cbsnr": "512", 
            "code": "G2TW", 
            "id": 3870531, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "10302", 
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            "code": "G2TW", 
            "id": 3870670, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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            "id": 3870927, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "id": 3871794, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "10702", 
            "cbsnr": "546", 
            "code": "G2TW", 
            "id": 3871925, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "10880", 
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            "code": "G2TW", 
            "id": 3872315, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "11301", 
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            "code": "G2TW", 
            "id": 3873073, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "10345", 
            "cbsnr": "599", 
            "code": "G2TW", 
            "id": 3873604, 
            "indicator": "Grafische bedrijven", 
            "naam": "ROTTERDAM", 
            "value": 96.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11260", 
            "cbsnr": "606", 
            "code": "G2TW", 
            "id": 3873923, 
            "indicator": "Grafische bedrijven", 
            "naam": "SCHIEDAM", 
            "value": 4.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11331", 
            "cbsnr": "610", 
            "code": "G2TW", 
            "id": 3874122, 
            "indicator": "Grafische bedrijven", 
            "naam": "SLIEDRECHT", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10811", 
            "cbsnr": "622", 
            "code": "G2TW", 
            "id": 3874467, 
            "indicator": "Grafische bedrijven", 
            "naam": "VLAARDINGEN", 
            "value": 3.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10974", 
            "cbsnr": "632", 
            "code": "G2TW", 
            "id": 3874818, 
            "indicator": "Grafische bedrijven", 
            "naam": "WOERDEN", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10974", 
            "cbsnr": "632", 
            "code": "G2TW", 
            "id": 3874927, 
            "indicator": "Grafische bedrijven", 
            "naam": "WOERDEN", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10674", 
            "cbsnr": "664", 
            "code": "G2TW", 
            "id": 3875602, 
            "indicator": "Grafische bedrijven", 
            "naam": "GOES", 
            "value": 4.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10122", 
            "cbsnr": "687", 
            "code": "G2TW", 
            "id": 3875840, 
            "indicator": "Grafische bedrijven", 
            "naam": "MIDDELBURG", 
            "value": 4.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10704", 
            "cbsnr": "715", 
            "code": "G2TW", 
            "id": 3876283, 
            "indicator": "Grafische bedrijven", 
            "naam": "TERNEUZEN", 
            "value": 4.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10270", 
            "cbsnr": "718", 
            "code": "G2TW", 
            "id": 3876457, 
            "indicator": "Grafische bedrijven", 
            "naam": "VLISSINGEN", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10843", 
            "cbsnr": "732", 
            "code": "G2TW", 
            "id": 3876664, 
            "indicator": "Grafische bedrijven", 
            "naam": "ZIERIKZEE", 
            "value": 3.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11037", 
            "cbsnr": "748", 
            "code": "G2TW", 
            "id": 3877015, 
            "indicator": "Grafische bedrijven", 
            "naam": "BERGEN OP ZOOM", 
            "value": 6.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10154", 
            "cbsnr": "758", 
            "code": "G2TW", 
            "id": 3877467, 
            "indicator": "Grafische bedrijven", 
            "naam": "BREDA", 
            "value": 14.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11412", 
            "cbsnr": "766", 
            "code": "G2TW", 
            "id": 3877750, 
            "indicator": "Grafische bedrijven", 
            "naam": "DONGEN", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11298", 
            "cbsnr": "772", 
            "code": "G2TW", 
            "id": 3878003, 
            "indicator": "Grafische bedrijven", 
            "naam": "EINDHOVEN", 
            "value": 11.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10932", 
            "cbsnr": "794", 
            "code": "G2TW", 
            "id": 3878688, 
            "indicator": "Grafische bedrijven", 
            "naam": "HELMOND", 
            "value": 4.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10054", 
            "cbsnr": "796", 
            "code": "G2TW", 
            "id": 3878841, 
            "indicator": "Grafische bedrijven", 
            "naam": "'S HERTOGENBOSCH", 
            "value": 12.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11259", 
            "cbsnr": "809", 
            "code": "G2TW", 
            "id": 3879289, 
            "indicator": "Grafische bedrijven", 
            "naam": "LOON OP ZAND", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11280", 
            "cbsnr": "826", 
            "code": "G2TW", 
            "id": 3879825, 
            "indicator": "Grafische bedrijven", 
            "naam": "OOSTERHOUT", 
            "value": 5.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10407", 
            "cbsnr": "838", 
            "code": "G2TW", 
            "id": 3880379, 
            "indicator": "Grafische bedrijven", 
            "naam": "ROOSENDAAL EN NISPEN", 
            "value": 6.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10792", 
            "cbsnr": "855", 
            "code": "G2TW", 
            "id": 3880922, 
            "indicator": "Grafische bedrijven", 
            "naam": "TILBURG", 
            "value": 18.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11224", 
            "cbsnr": "865", 
            "code": "G2TW", 
            "id": 3881297, 
            "indicator": "Grafische bedrijven", 
            "naam": "VUGHT", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10046", 
            "cbsnr": "878", 
            "code": "G2TW", 
            "id": 3881710, 
            "indicator": "Grafische bedrijven", 
            "naam": "ZEVENBERGEN", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10902", 
            "cbsnr": "917", 
            "code": "G2TW", 
            "id": 3882666, 
            "indicator": "Grafische bedrijven", 
            "naam": "HEERLEN", 
            "value": 3.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10313", 
            "cbsnr": "928", 
            "code": "G2TW", 
            "id": 3883033, 
            "indicator": "Grafische bedrijven", 
            "naam": "KERKRADE", 
            "value": 3.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10182", 
            "cbsnr": "935", 
            "code": "G2TW", 
            "id": 3883339, 
            "indicator": "Grafische bedrijven", 
            "naam": "MAASTRICHT", 
            "value": 13.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11313", 
            "cbsnr": "957", 
            "code": "G2TW", 
            "id": 3884083, 
            "indicator": "Grafische bedrijven", 
            "naam": "ROERMOND", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11230", 
            "cbsnr": "968", 
            "code": "G2TW", 
            "id": 3884484, 
            "indicator": "Grafische bedrijven", 
            "naam": "SITTARD", 
            "value": 5.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10007", 
            "cbsnr": "981", 
            "code": "G2TW", 
            "id": 3884906, 
            "indicator": "Grafische bedrijven", 
            "naam": "VAALS", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10477", 
            "cbsnr": "983", 
            "code": "G2TW", 
            "id": 3885058, 
            "indicator": "Grafische bedrijven", 
            "naam": "VENLO", 
            "value": 4.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10167", 
            "cbsnr": "1070", 
            "code": "G2TW", 
            "id": 3885394, 
            "indicator": "Grafische bedrijven", 
            "naam": "HARDINXVELD", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10410", 
            "cbsnr": "1083", 
            "code": "G2TW", 
            "id": 3885542, 
            "indicator": "Grafische bedrijven", 
            "naam": "HOOGEZAND", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11045", 
            "cbsnr": "1106", 
            "code": "G2TW", 
            "id": 3885620, 
            "indicator": "Grafische bedrijven", 
            "naam": "LONNEKER", 
            "value": 3.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10080", 
            "cbsnr": "1168", 
            "code": "G2TW", 
            "id": 3885702, 
            "indicator": "Grafische bedrijven", 
            "naam": "SAPPEMEER", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10825", 
            "cbsnr": "1225", 
            "code": "G2TW", 
            "id": 3885784, 
            "indicator": "Grafische bedrijven", 
            "naam": "WILDERVANK", 
            "value": 6.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10610", 
            "cbsnr": "1250", 
            "code": "G2TW", 
            "id": 3885877, 
            "indicator": "Grafische bedrijven", 
            "naam": "ONSTWEDDE", 
            "value": 2.0, 
            "year": 1930
        }
    ]
}