{
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            "indicator": "Grafische bedrijven", 
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        {
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            "code": "GPKM", 
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            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "indicator": "Grafische bedrijven", 
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            "indicator": "Grafische bedrijven", 
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            "code": "GPKM", 
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            "indicator": "Grafische bedrijven", 
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            "indicator": "Grafische bedrijven", 
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            "indicator": "Grafische bedrijven", 
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            "code": "GPKM", 
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            "indicator": "Grafische bedrijven", 
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            "indicator": "Grafische bedrijven", 
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            "indicator": "Grafische bedrijven", 
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            "code": "GPKM", 
            "id": 3855539, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "GPKM", 
            "id": 3855859, 
            "indicator": "Grafische bedrijven", 
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            "indicator": "Grafische bedrijven", 
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            "code": "GPKM", 
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            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "GPKM", 
            "id": 3856890, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "GPKM", 
            "id": 3857148, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
            "amsterdam_code": "10899", 
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            "code": "GPKM", 
            "id": 3857315, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
            "amsterdam_code": "10364", 
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            "code": "GPKM", 
            "id": 3857510, 
            "indicator": "Grafische bedrijven", 
            "naam": "ENSCHEDE", 
            "value": 141.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10806", 
            "cbsnr": "163", 
            "code": "GPKM", 
            "id": 3857873, 
            "indicator": "Grafische bedrijven", 
            "naam": "HELLENDOORN", 
            "value": 10.0, 
            "year": 1930
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        {
            "amsterdam_code": "10907", 
            "cbsnr": "164", 
            "code": "GPKM", 
            "id": 3857987, 
            "indicator": "Grafische bedrijven", 
            "naam": "HENGELO O", 
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            "year": 1930
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        {
            "amsterdam_code": "10253", 
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            "code": "GPKM", 
            "id": 3858147, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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            "code": "GPKM", 
            "id": 3858518, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "GPKM", 
            "id": 3858730, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "cbsnr": "181", 
            "code": "GPKM", 
            "id": 3858878, 
            "indicator": "Grafische bedrijven", 
            "naam": "STEENWIJK", 
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            "year": 1930
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        {
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            "code": "GPKM", 
            "id": 3859305, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "GPKM", 
            "id": 3859537, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
            "amsterdam_code": "10795", 
            "cbsnr": "202", 
            "code": "GPKM", 
            "id": 3859711, 
            "indicator": "Grafische bedrijven", 
            "naam": "ARNHEM", 
            "value": 474.0, 
            "year": 1930
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        {
            "amsterdam_code": "10342", 
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            "code": "GPKM", 
            "id": 3860253, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
            "amsterdam_code": "10786", 
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            "code": "GPKM", 
            "id": 3861057, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
            "amsterdam_code": "11209", 
            "cbsnr": "268", 
            "code": "GPKM", 
            "id": 3861833, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
            "amsterdam_code": "11325", 
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            "code": "GPKM", 
            "id": 3862115, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
            "amsterdam_code": "11355", 
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            "code": "GPKM", 
            "id": 3862250, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "GPKM", 
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            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "GPKM", 
            "id": 3862807, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "GPKM", 
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            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
            "amsterdam_code": "10948", 
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            "code": "GPKM", 
            "id": 3863410, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
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            "code": "GPKM", 
            "id": 3863524, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "GPKM", 
            "id": 3864564, 
            "indicator": "Grafische bedrijven", 
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            "value": 1195.0, 
            "year": 1930
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        {
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            "code": "GPKM", 
            "id": 3864689, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
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            "code": "GPKM", 
            "id": 3865037, 
            "indicator": "Grafische bedrijven", 
            "naam": "ZEIST", 
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            "year": 1930
        }, 
        {
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            "code": "GPKM", 
            "id": 3865251, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
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            "cbsnr": "363", 
            "code": "GPKM", 
            "id": 3865449, 
            "indicator": "Grafische bedrijven", 
            "naam": "AMSTERDAM", 
            "value": 6050.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10272", 
            "cbsnr": "375", 
            "code": "GPKM", 
            "id": 3865872, 
            "indicator": "Grafische bedrijven", 
            "naam": "BEVERWIJK", 
            "value": 39.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10850", 
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            "code": "GPKM", 
            "id": 3865998, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "10281", 
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            "code": "GPKM", 
            "id": 3866199, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "10884", 
            "cbsnr": "385", 
            "code": "GPKM", 
            "id": 3866388, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
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            "cbsnr": "388", 
            "code": "GPKM", 
            "id": 3866539, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "10357", 
            "cbsnr": "392", 
            "code": "GPKM", 
            "id": 3866721, 
            "indicator": "Grafische bedrijven", 
            "naam": "HAARLEM", 
            "value": 1525.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10285", 
            "cbsnr": "400", 
            "code": "GPKM", 
            "id": 3867046, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
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            "code": "GPKM", 
            "id": 3867200, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "11392", 
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            "code": "GPKM", 
            "id": 3867378, 
            "indicator": "Grafische bedrijven", 
            "naam": "HOORN", 
            "value": 119.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11066", 
            "cbsnr": "439", 
            "code": "GPKM", 
            "id": 3868190, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "10620", 
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            "code": "GPKM", 
            "id": 3868566, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
            "amsterdam_code": "10773", 
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            "code": "GPKM", 
            "id": 3868730, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "10361", 
            "cbsnr": "468", 
            "code": "GPKM", 
            "id": 3869049, 
            "indicator": "Grafische bedrijven", 
            "naam": "WORMERVEER", 
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            "year": 1930
        }, 
        {
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            "code": "GPKM", 
            "id": 3869197, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "GPKM", 
            "id": 3869493, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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            "code": "GPKM", 
            "id": 3870113, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "GPKM", 
            "id": 3870284, 
            "indicator": "Grafische bedrijven", 
            "naam": "DORDRECHT", 
            "value": 200.0, 
            "year": 1930
        }, 
        {
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            "code": "GPKM", 
            "id": 3870534, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
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        {
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            "code": "GPKM", 
            "id": 3870672, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
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            "cbsnr": "518", 
            "code": "GPKM", 
            "id": 3870930, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
            "amsterdam_code": "10707", 
            "cbsnr": "537", 
            "code": "GPKM", 
            "id": 3871505, 
            "indicator": "Grafische bedrijven", 
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            "year": 1930
        }, 
        {
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            "code": "GPKM", 
            "id": 3871796, 
            "indicator": "Grafische bedrijven", 
            "naam": "LEERDAM", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10702", 
            "cbsnr": "546", 
            "code": "GPKM", 
            "id": 3871928, 
            "indicator": "Grafische bedrijven", 
            "naam": "LEIDEN", 
            "value": 781.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10880", 
            "cbsnr": "556", 
            "code": "GPKM", 
            "id": 3872318, 
            "indicator": "Grafische bedrijven", 
            "naam": "MAASSLUIS", 
            "value": 18.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10646", 
            "cbsnr": "597", 
            "code": "GPKM", 
            "id": 3873457, 
            "indicator": "Grafische bedrijven", 
            "naam": "RIDDERKERK", 
            "value": 28.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10345", 
            "cbsnr": "599", 
            "code": "GPKM", 
            "id": 3873607, 
            "indicator": "Grafische bedrijven", 
            "naam": "ROTTERDAM", 
            "value": 3165.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11260", 
            "cbsnr": "606", 
            "code": "GPKM", 
            "id": 3873926, 
            "indicator": "Grafische bedrijven", 
            "naam": "SCHIEDAM", 
            "value": 206.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11331", 
            "cbsnr": "610", 
            "code": "GPKM", 
            "id": 3874125, 
            "indicator": "Grafische bedrijven", 
            "naam": "SLIEDRECHT", 
            "value": 15.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10811", 
            "cbsnr": "622", 
            "code": "GPKM", 
            "id": 3874470, 
            "indicator": "Grafische bedrijven", 
            "naam": "VLAARDINGEN", 
            "value": 60.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10974", 
            "cbsnr": "632", 
            "code": "GPKM", 
            "id": 3874821, 
            "indicator": "Grafische bedrijven", 
            "naam": "WOERDEN", 
            "value": 20.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10974", 
            "cbsnr": "632", 
            "code": "GPKM", 
            "id": 3874930, 
            "indicator": "Grafische bedrijven", 
            "naam": "WOERDEN", 
            "value": 20.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10468", 
            "cbsnr": "642", 
            "code": "GPKM", 
            "id": 3875279, 
            "indicator": "Grafische bedrijven", 
            "naam": "ZWIJNDRECHT", 
            "value": 1.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10674", 
            "cbsnr": "664", 
            "code": "GPKM", 
            "id": 3875605, 
            "indicator": "Grafische bedrijven", 
            "naam": "GOES", 
            "value": 15.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10122", 
            "cbsnr": "687", 
            "code": "GPKM", 
            "id": 3875843, 
            "indicator": "Grafische bedrijven", 
            "naam": "MIDDELBURG", 
            "value": 33.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10704", 
            "cbsnr": "715", 
            "code": "GPKM", 
            "id": 3876286, 
            "indicator": "Grafische bedrijven", 
            "naam": "TERNEUZEN", 
            "value": 18.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10270", 
            "cbsnr": "718", 
            "code": "GPKM", 
            "id": 3876460, 
            "indicator": "Grafische bedrijven", 
            "naam": "VLISSINGEN", 
            "value": 59.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10843", 
            "cbsnr": "732", 
            "code": "GPKM", 
            "id": 3876666, 
            "indicator": "Grafische bedrijven", 
            "naam": "ZIERIKZEE", 
            "value": 8.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11037", 
            "cbsnr": "748", 
            "code": "GPKM", 
            "id": 3877017, 
            "indicator": "Grafische bedrijven", 
            "naam": "BERGEN OP ZOOM", 
            "value": 17.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10083", 
            "cbsnr": "757", 
            "code": "GPKM", 
            "id": 3877347, 
            "indicator": "Grafische bedrijven", 
            "naam": "BOXTEL", 
            "value": 34.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10154", 
            "cbsnr": "758", 
            "code": "GPKM", 
            "id": 3877470, 
            "indicator": "Grafische bedrijven", 
            "naam": "BREDA", 
            "value": 107.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11412", 
            "cbsnr": "766", 
            "code": "GPKM", 
            "id": 3877753, 
            "indicator": "Grafische bedrijven", 
            "naam": "DONGEN", 
            "value": 6.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11298", 
            "cbsnr": "772", 
            "code": "GPKM", 
            "id": 3878005, 
            "indicator": "Grafische bedrijven", 
            "naam": "EINDHOVEN", 
            "value": 391.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10932", 
            "cbsnr": "794", 
            "code": "GPKM", 
            "id": 3878691, 
            "indicator": "Grafische bedrijven", 
            "naam": "HELMOND", 
            "value": 138.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10054", 
            "cbsnr": "796", 
            "code": "GPKM", 
            "id": 3878844, 
            "indicator": "Grafische bedrijven", 
            "naam": "'S HERTOGENBOSCH", 
            "value": 649.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11259", 
            "cbsnr": "809", 
            "code": "GPKM", 
            "id": 3879292, 
            "indicator": "Grafische bedrijven", 
            "naam": "LOON OP ZAND", 
            "value": 8.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11280", 
            "cbsnr": "826", 
            "code": "GPKM", 
            "id": 3879828, 
            "indicator": "Grafische bedrijven", 
            "naam": "OOSTERHOUT", 
            "value": 38.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10407", 
            "cbsnr": "838", 
            "code": "GPKM", 
            "id": 3880382, 
            "indicator": "Grafische bedrijven", 
            "naam": "ROOSENDAAL EN NISPEN", 
            "value": 53.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10792", 
            "cbsnr": "855", 
            "code": "GPKM", 
            "id": 3880925, 
            "indicator": "Grafische bedrijven", 
            "naam": "TILBURG", 
            "value": 321.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11224", 
            "cbsnr": "865", 
            "code": "GPKM", 
            "id": 3881299, 
            "indicator": "Grafische bedrijven", 
            "naam": "VUGHT", 
            "value": 8.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10046", 
            "cbsnr": "878", 
            "code": "GPKM", 
            "id": 3881711, 
            "indicator": "Grafische bedrijven", 
            "naam": "ZEVENBERGEN", 
            "value": 4.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10902", 
            "cbsnr": "917", 
            "code": "GPKM", 
            "id": 3882669, 
            "indicator": "Grafische bedrijven", 
            "naam": "HEERLEN", 
            "value": 80.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10313", 
            "cbsnr": "928", 
            "code": "GPKM", 
            "id": 3883035, 
            "indicator": "Grafische bedrijven", 
            "naam": "KERKRADE", 
            "value": 17.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10182", 
            "cbsnr": "935", 
            "code": "GPKM", 
            "id": 3883342, 
            "indicator": "Grafische bedrijven", 
            "naam": "MAASTRICHT", 
            "value": 192.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10494", 
            "cbsnr": "938", 
            "code": "GPKM", 
            "id": 3883497, 
            "indicator": "Grafische bedrijven", 
            "naam": "MEERSSEN", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11313", 
            "cbsnr": "957", 
            "code": "GPKM", 
            "id": 3884086, 
            "indicator": "Grafische bedrijven", 
            "naam": "ROERMOND", 
            "value": 48.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11230", 
            "cbsnr": "968", 
            "code": "GPKM", 
            "id": 3884486, 
            "indicator": "Grafische bedrijven", 
            "naam": "SITTARD", 
            "value": 24.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10007", 
            "cbsnr": "981", 
            "code": "GPKM", 
            "id": 3884907, 
            "indicator": "Grafische bedrijven", 
            "naam": "VAALS", 
            "value": 3.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10477", 
            "cbsnr": "983", 
            "code": "GPKM", 
            "id": 3885061, 
            "indicator": "Grafische bedrijven", 
            "naam": "VENLO", 
            "value": 102.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10167", 
            "cbsnr": "1070", 
            "code": "GPKM", 
            "id": 3885396, 
            "indicator": "Grafische bedrijven", 
            "naam": "HARDINXVELD", 
            "value": 8.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10227", 
            "cbsnr": "1081", 
            "code": "GPKM", 
            "id": 3885466, 
            "indicator": "Grafische bedrijven", 
            "naam": "HILLEGERSBERG", 
            "value": 2.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10410", 
            "cbsnr": "1083", 
            "code": "GPKM", 
            "id": 3885544, 
            "indicator": "Grafische bedrijven", 
            "naam": "HOOGEZAND", 
            "value": 43.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "11045", 
            "cbsnr": "1106", 
            "code": "GPKM", 
            "id": 3885622, 
            "indicator": "Grafische bedrijven", 
            "naam": "LONNEKER", 
            "value": 4.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10080", 
            "cbsnr": "1168", 
            "code": "GPKM", 
            "id": 3885704, 
            "indicator": "Grafische bedrijven", 
            "naam": "SAPPEMEER", 
            "value": 12.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10825", 
            "cbsnr": "1225", 
            "code": "GPKM", 
            "id": 3885786, 
            "indicator": "Grafische bedrijven", 
            "naam": "WILDERVANK", 
            "value": 59.0, 
            "year": 1930
        }, 
        {
            "amsterdam_code": "10610", 
            "cbsnr": "1250", 
            "code": "GPKM", 
            "id": 3885879, 
            "indicator": "Grafische bedrijven", 
            "naam": "ONSTWEDDE", 
            "value": 32.0, 
            "year": 1930
        }
    ]
}