{
  "fields": [{"id":"_id","type":"int"},{"id":"年度","type":"text"},{"id":"利用件数（件）","type":"numeric"}],
  "records": [
    [1,"27",46],
    [2,"28",50],
    [3,"29",33],
    [4,"30",31],
    [5,"元",26],
    [6,"2",0],
    [7,"3",0]
]}