{
  "fields": [{"id":"_id","type":"int"},{"id":"年次","type":"numeric"},{"id":"総数","type":"numeric"},{"id":"男","type":"numeric"},{"id":"女","type":"numeric"}],
  "records": [
    [1,2005,49253,24656,24597],
    [2,2010,51023,25904,25119],
    [3,2015,50254,25226,25028],
    [4,2020,49835,25161,24674]
]}