{
  "fields": [{"id":"_id","type":"int"},{"id":"区　　　　分","type":"text"},{"id":"令和元年度末現在","type":"text"},{"id":"令和２度年末現在","type":"text"},{"id":"年度平均","type":"text"}],
  "records": [
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    [2,"被　保　険　者　数　（人）","27130","26616","26976"],
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]}