{
  "fields": [{"id":"_id","type":"int"},{"id":"全国地方公共団体コード","type":"numeric"},{"id":"地方公共団体名","type":"text"},{"id":"年","type":"numeric"},{"id":"月","type":"numeric"},{"id":"国民年金被保険者数","type":"numeric"}],
  "records": [
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    [2,422011,"長崎県長崎市",2015,2,90505],
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    [5,422011,"長崎県長崎市",2015,5,88564],
    [6,422011,"長崎県長崎市",2015,6,88049],
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]}