{
  "fields": [{"id":"_id","type":"int"},{"id":"年度","type":"text"},{"id":"人数","type":"numeric"}],
  "records": [
    [1,"平成２７年度",451],
    [2,"平成２６年度",460],
    [3,"平成２５年度",485],
    [4,"平成２４年度",543],
    [5,"平成２３年度",700],
    [6,"平成２２年度",695]
]}