{
  "fields": [{"id":"_id","type":"int"},{"id":"年度","type":"text"},{"id":"登録者数[人]","type":"text"}],
  "records": [
    [1,"2016","141829"],
    [2,"2017","143437"],
    [3,"2018","144992"],
    [4,"2019","146607"],
    [5,"2020","146674"],
    [6,null,null],
    [7,"令和3年度港区行政資料集　印鑑登録者数","Ver202103"]
]}