{
  "area": {
    "code": "10000",
    "name": "群馬県",
    "slug": "gunma"
  },
  "structure": {
    "id": "wood",
    "name": "木造"
  },
  "segment": {
    "segment": "owner",
    "building_type": "detached",
    "label": "持家・一戸建"
  },
  "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": 1518,
    "price_per_tsubo": 90.52726944645323,
    "prev_price_per_tsubo": 86.89965606666489,
    "change_vs_prev": 4.174485313273777,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 5576,
      "floor_total": 682011,
      "cost_total": 11415340,
      "price_per_tsubo": 55.331536908642235,
      "price_per_sqm": 167377.65226660567,
      "cost_per_unit": 2047.2274031563845,
      "floor_per_unit": 122.31187230989957,
      "yoy": null,
      "ratio_national": 1.0012357549606459,
      "rank_in_national": 16,
      "is_spliced": false,
      "price_per_tsubo_real": 62.94827862189105,
      "deflator": 87.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 6554,
      "floor_total": 799587,
      "cost_total": 13556748,
      "price_per_tsubo": 56.04863757279696,
      "price_per_sqm": 169546.8785760649,
      "cost_per_unit": 2068.4693317058286,
      "floor_per_unit": 121.99984742142203,
      "yoy": 1.2960071312292154,
      "ratio_national": 1.0014534510895599,
      "rank_in_national": 16,
      "is_spliced": false,
      "price_per_tsubo_real": 61.79563128202532,
      "deflator": 90.7,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 5170,
      "floor_total": 620801,
      "cost_total": 10805851,
      "price_per_tsubo": 57.54158607555401,
      "price_per_sqm": 174063.04113556517,
      "cost_per_unit": 2090.106576402321,
      "floor_per_unit": 120.07756286266924,
      "yoy": 2.663666000476783,
      "ratio_national": 0.9982610884760187,
      "rank_in_national": 13,
      "is_spliced": false,
      "price_per_tsubo_real": 61.541803289362576,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 5526,
      "floor_total": 665296,
      "cost_total": 11662434,
      "price_per_tsubo": 57.94948067155071,
      "price_per_sqm": 175296.9204684832,
      "cost_per_unit": 2110.4657980456027,
      "floor_per_unit": 120.39377488237423,
      "yoy": 0.7088692262690266,
      "ratio_national": 0.9935173758974348,
      "rank_in_national": 19,
      "is_spliced": false,
      "price_per_tsubo_real": 61.97805419417188,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 5412,
      "floor_total": 648832,
      "cost_total": 11410591,
      "price_per_tsubo": 58.13680216433529,
      "price_per_sqm": 175863.56714835274,
      "cost_per_unit": 2108.3871027346636,
      "floor_per_unit": 119.88765705838877,
      "yoy": 0.32324964885586116,
      "ratio_national": 0.9901439403816698,
      "rank_in_national": 22,
      "is_spliced": false,
      "price_per_tsubo_real": 61.91352733156048,
      "deflator": 93.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 5254,
      "floor_total": 630253,
      "cost_total": 11288349,
      "price_per_tsubo": 59.2094146964949,
      "price_per_sqm": 179108.21527227954,
      "cost_per_unit": 2148.524743052912,
      "floor_per_unit": 119.95679482299201,
      "yoy": 1.8449802745043709,
      "ratio_national": 0.9977049667414851,
      "rank_in_national": 21,
      "is_spliced": false,
      "price_per_tsubo_real": 62.12950125550357,
      "deflator": 95.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 5311,
      "floor_total": 631410,
      "cost_total": 11589962,
      "price_per_tsubo": 60.68003433581983,
      "price_per_sqm": 183556.83311952613,
      "cost_per_unit": 2182.2560723027677,
      "floor_per_unit": 118.8872152137074,
      "yoy": 2.4837597987807714,
      "ratio_national": 1.0101765442592912,
      "rank_in_national": 17,
      "is_spliced": false,
      "price_per_tsubo_real": 61.981648964065194,
      "deflator": 97.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 5188,
      "floor_total": 608597,
      "cost_total": 11218799,
      "price_per_tsubo": 60.93850864563906,
      "price_per_sqm": 184338.71675345098,
      "cost_per_unit": 2162.4516191210487,
      "floor_per_unit": 117.3085967617579,
      "yoy": 0.4259626953880158,
      "ratio_national": 1.0017348151719034,
      "rank_in_national": 23,
      "is_spliced": false,
      "price_per_tsubo_real": 60.87763101462444,
      "deflator": 100.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 4725,
      "floor_total": 554117,
      "cost_total": 10343358,
      "price_per_tsubo": 61.70712943804288,
      "price_per_sqm": 186663.79122098762,
      "cost_per_unit": 2189.0704761904763,
      "floor_per_unit": 117.27343915343916,
      "yoy": 1.2613055512621596,
      "ratio_national": 1.00699912100526,
      "rank_in_national": 20,
      "is_spliced": false,
      "price_per_tsubo_real": 61.70712943804288,
      "deflator": 100,
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    },
    {
      "fiscal_year": 2021,
      "units": 5006,
      "floor_total": 580258,
      "cost_total": 10896737,
      "price_per_tsubo": 62.07984070401443,
      "price_per_sqm": 187791.24113756296,
      "cost_per_unit": 2176.735317618857,
      "floor_per_unit": 115.9125049940072,
      "yoy": 0.6040003308625419,
      "ratio_national": 1.006382661827481,
      "rank_in_national": 22,
      "is_spliced": false,
      "price_per_tsubo_real": 56.282720493213446,
      "deflator": 110.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 4446,
      "floor_total": 505195,
      "cost_total": 9578163,
      "price_per_tsubo": 62.67559153152743,
      "price_per_sqm": 189593.384732628,
      "cost_per_unit": 2154.332658569501,
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      "ratio_national": 0.9876818713786684,
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      "is_spliced": false,
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      "deflator": 116.7,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 4154,
      "floor_total": 466520,
      "cost_total": 10950389,
      "price_per_tsubo": 77.5951437286933,
      "price_per_sqm": 234724.963559976,
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      "is_spliced": false,
      "price_per_tsubo_real": 67.59158861384435,
      "deflator": 114.8,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 4039,
      "floor_total": 451459,
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      "price_per_tsubo": 80.2335301663274,
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    {
      "fiscal_year": 2025,
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  ]
}