{
  "fields": [{"id":"_id","type":"int"},{"id":"年度","type":"text"},{"id":"登録者数（人）","type":"numeric"},{"id":"延訪問回数（回）","type":"numeric"},{"id":"延時間数（時間）","type":"numeric"}],
  "records": [
    [1,"27",63,246,503],
    [2,"28",66,288,701.5],
    [3,"29",71,273,613],
    [4,"30",81,377,853],
    [5,"元",85,252,635],
    [6,"2",93,219,528],
    [7,"3",71,48,119.5],
    [8,"4",61,101,255],
    [9,"5",71,191,439],
    [10,"6",76,281,740]
]}