{
  "fields": [{"id":"_id","type":"int"},{"id":"年度（西暦）","type":"numeric"},{"id":"年度（和暦）","type":"text"},{"id":"被保険者（世帯数）","type":"numeric"},{"id":"被保険者（人）","type":"numeric"},{"id":"加入率（世帯数）","type":"numeric"},{"id":"加入率（人）","type":"numeric"},{"id":"23区全体の加入率（世帯数）","type":"numeric"},{"id":"23区全体の加入率（人）","type":"numeric"}],
  "records": [
    [1,2019,"令和元",42416,57249,26.6,20.3,27.3,20.7],
    [2,2020,"令和2",41907,56128,26.4,20,26.7,20.2],
    [3,2021,"令和3",40379,53634,25.7,19.3,25.9,19.4],
    [4,2022,"令和4",39356,51520,24.8,18.5,25.2,18.6],
    [5,2023,"令和5",38625,49826,24,17.8,24.3,18],
    [6,2024,"令和6",37322,47621,23,16.9,23.7,17.4]
]}