{
  "area": {
    "code": "10000",
    "name": "群馬県",
    "slug": "gunma"
  },
  "structure": {
    "id": "steel",
    "name": "鉄骨造"
  },
  "segment": {
    "segment": "all",
    "building_type": "all",
    "label": "新築住宅すべて"
  },
  "unit": {
    "price_per_tsubo": "万円/坪",
    "price_per_sqm": "円/㎡",
    "cost": "万円",
    "floor": "㎡",
    "yoy": "%"
  },
  "formula": "price_per_tsubo = cost_total / floor_total * 3.30579",
  "formula_real": "price_per_tsubo_real = price_per_tsubo / deflator * 100 (MLIT construction cost deflator for housing of the same structure, FY2020 = 100)",
  "source": "https://www.e-stat.go.jp/stat-search/files?page=1&toukei=00600120&tstat=000001016966&cycle=8",
  "last_verified_at": "2026-10-13T11:03:37.415Z",
  "provisional": {
    "fiscal_year": 2026,
    "through_month": "2026-08",
    "months": 5,
    "units": 461,
    "price_per_tsubo": 110.75646628148989,
    "prev_price_per_tsubo": 108.32978999587446,
    "change_vs_prev": 2.2400821470325525,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 2129,
      "floor_total": 173526,
      "cost_total": 3338506,
      "price_per_tsubo": 63.60084223539988,
      "price_per_sqm": 192392.26398349527,
      "cost_per_unit": 1568.1099107562236,
      "floor_per_unit": 81.50587130108032,
      "yoy": null,
      "ratio_national": 0.9272232557977539,
      "rank_in_national": 29,
      "is_spliced": false,
      "price_per_tsubo_real": 72.4383168968108,
      "deflator": 87.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 2368,
      "floor_total": 190375,
      "cost_total": 3709156,
      "price_per_tsubo": 64.40809356921865,
      "price_per_sqm": 194834.1956664478,
      "cost_per_unit": 1566.366554054054,
      "floor_per_unit": 80.39484797297297,
      "yoy": 1.269246295247095,
      "ratio_national": 0.9225149082403681,
      "rank_in_national": 32,
      "is_spliced": false,
      "price_per_tsubo_real": 71.32679243545809,
      "deflator": 90.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 2090,
      "floor_total": 159926,
      "cost_total": 3260277,
      "price_per_tsubo": 67.39236336699474,
      "price_per_sqm": 203861.5984893013,
      "cost_per_unit": 1559.9411483253589,
      "floor_per_unit": 76.51961722488038,
      "yoy": 4.633377006523154,
      "ratio_national": 0.9266619105738845,
      "rank_in_national": 30,
      "is_spliced": false,
      "price_per_tsubo_real": 72.00038821260122,
      "deflator": 93.6,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 2746,
      "floor_total": 190106,
      "cost_total": 4020155,
      "price_per_tsubo": 69.90725278239508,
      "price_per_sqm": 211469.1277497817,
      "cost_per_unit": 1464.004005826657,
      "floor_per_unit": 69.23015294974509,
      "yoy": 3.731712748676208,
      "ratio_national": 0.9399655360361722,
      "rank_in_national": 25,
      "is_spliced": false,
      "price_per_tsubo_real": 74.84716571990907,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 2778,
      "floor_total": 196706,
      "cost_total": 4258601,
      "price_per_tsubo": 71.56894349836813,
      "price_per_sqm": 216495.73475135482,
      "cost_per_unit": 1532.973722102232,
      "floor_per_unit": 70.80849532037438,
      "yoy": 2.3769933016042133,
      "ratio_national": 0.9414589107114917,
      "rank_in_national": 26,
      "is_spliced": false,
      "price_per_tsubo_real": 76.62627783551191,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 2677,
      "floor_total": 194571,
      "cost_total": 4294577,
      "price_per_tsubo": 72.96549691798882,
      "price_per_sqm": 220720.30261446978,
      "cost_per_unit": 1604.249906611879,
      "floor_per_unit": 72.68248038849458,
      "yoy": 1.9513399965901845,
      "ratio_national": 0.9338746709937596,
      "rank_in_national": 30,
      "is_spliced": false,
      "price_per_tsubo_real": 76.64442953570253,
      "deflator": 95.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 2326,
      "floor_total": 175705,
      "cost_total": 3854844,
      "price_per_tsubo": 72.52670525460289,
      "price_per_sqm": 219392.95979055803,
      "cost_per_unit": 1657.2846087704213,
      "floor_per_unit": 75.53955288048151,
      "yoy": -0.6013687042782934,
      "ratio_national": 0.9089661005485385,
      "rank_in_national": 36,
      "is_spliced": false,
      "price_per_tsubo_real": 73.93140189052284,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 1708,
      "floor_total": 142386,
      "cost_total": 3389208,
      "price_per_tsubo": 78.68758104251822,
      "price_per_sqm": 238029.58155998483,
      "cost_per_unit": 1984.3138173302107,
      "floor_per_unit": 83.36416861826697,
      "yoy": 8.494630724348706,
      "ratio_national": 0.9478673740097928,
      "rank_in_national": 22,
      "is_spliced": false,
      "price_per_tsubo_real": 78.5305200025132,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 1284,
      "floor_total": 110728,
      "cost_total": 2741227,
      "price_per_tsubo": 81.83946973060111,
      "price_per_sqm": 247564.03077812298,
      "cost_per_unit": 2134.9119937694704,
      "floor_per_unit": 86.2367601246106,
      "yoy": 4.005573238272242,
      "ratio_national": 0.9555715686878827,
      "rank_in_national": 21,
      "is_spliced": false,
      "price_per_tsubo_real": 81.83946973060111,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 1570,
      "floor_total": 122826,
      "cost_total": 3144357,
      "price_per_tsubo": 84.62853082433686,
      "price_per_sqm": 256000.92814225002,
      "cost_per_unit": 2002.7751592356688,
      "floor_per_unit": 78.23312101910828,
      "yoy": 3.407965744300112,
      "ratio_national": 0.9622042820092853,
      "rank_in_national": 17,
      "is_spliced": false,
      "price_per_tsubo_real": 78.14268774176996,
      "deflator": 108.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 1749,
      "floor_total": 133591,
      "cost_total": 3610303,
      "price_per_tsubo": 89.33912879138565,
      "price_per_sqm": 270250.46597450424,
      "cost_per_unit": 2064.2098341909664,
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      "rank_in_national": 17,
      "is_spliced": false,
      "price_per_tsubo_real": 76.75182885857873,
      "deflator": 116.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 1423,
      "floor_total": 113450,
      "cost_total": 3415721,
      "price_per_tsubo": 99.52980453583076,
      "price_per_sqm": 301077.21463199647,
      "cost_per_unit": 2400.366127898805,
      "floor_per_unit": 79.72593113141251,
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      "ratio_national": 0.9845984037794254,
      "rank_in_national": 16,
      "is_spliced": false,
      "price_per_tsubo_real": 85.06820900498356,
      "deflator": 117,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 1216,
      "floor_total": 100706,
      "cost_total": 3298129,
      "price_per_tsubo": 108.2648686961055,
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    {
      "fiscal_year": 2025,
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  ]
}