{
  "fields": [{"id":"_id","type":"int"},{"id":"年次別（年末現在）","type":"numeric"},{"id":"郵便局（軒）","type":"numeric"},{"id":"簡易郵便局（軒）","type":"numeric"},{"id":"ゆうちょ銀行店舗（行）","type":"numeric"},{"id":"切手類販売所（箇所）","type":"numeric"},{"id":"ポスト丸型（本）","type":"numeric"},{"id":"ポスト角型（本）","type":"numeric"}],
  "records": [
    [1,2019,45,2,1,308,0,300],
    [2,2020,45,2,1,244,0,306],
    [3,2021,45,2,1,222,0,306],
    [4,2022,45,2,1,209,0,301],
    [5,2023,45,2,1,199,0,300]
]}