{
  "area": {
    "code": "10000",
    "name": "群馬県",
    "slug": "gunma"
  },
  "structure": {
    "id": "all",
    "name": "全構造"
  },
  "segment": {
    "segment": "rental",
    "building_type": "all",
    "label": "貸家"
  },
  "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": 883,
    "price_per_tsubo": 81.13062314798708,
    "prev_price_per_tsubo": 79.4585228651787,
    "change_vs_prev": 2.10436869767328,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 3308,
      "floor_total": 175753,
      "cost_total": 2785334,
      "price_per_tsubo": 52.39016849703846,
      "price_per_sqm": 158480.02594550306,
      "cost_per_unit": 841.9993954050786,
      "floor_per_unit": 53.12968561064087,
      "yoy": null,
      "ratio_national": 0.9357536566080717,
      "rank_in_national": 20,
      "is_spliced": false,
      "price_per_tsubo_real": 59.66989578250394,
      "deflator": 87.8,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 3669,
      "floor_total": 196162,
      "cost_total": 3218100,
      "price_per_tsubo": 54.2325363679,
      "price_per_sqm": 164053.18053445622,
      "cost_per_unit": 877.1054783319705,
      "floor_per_unit": 53.46470427909512,
      "yoy": 3.5166290235651543,
      "ratio_national": 0.9257756248143437,
      "rank_in_national": 23,
      "is_spliced": false,
      "price_per_tsubo_real": 59.991743769800884,
      "deflator": 90.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 3264,
      "floor_total": 172682,
      "cost_total": 2885342,
      "price_per_tsubo": 55.23641566683268,
      "price_per_sqm": 167089.91093455022,
      "cost_per_unit": 883.9895833333334,
      "floor_per_unit": 52.90502450980392,
      "yoy": 1.8510646305063272,
      "ratio_national": 0.8932174634895693,
      "rank_in_national": 24,
      "is_spliced": false,
      "price_per_tsubo_real": 59.13963133493863,
      "deflator": 93.4,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 4341,
      "floor_total": 218352,
      "cost_total": 3843828,
      "price_per_tsubo": 58.194512365904586,
      "price_per_sqm": 176038.14025060454,
      "cost_per_unit": 885.4706288873532,
      "floor_per_unit": 50.299930891499656,
      "yoy": 5.355337893237211,
      "ratio_national": 0.9145365958416221,
      "rank_in_national": 21,
      "is_spliced": false,
      "price_per_tsubo_real": 62.44046391191479,
      "deflator": 93.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 4722,
      "floor_total": 241137,
      "cost_total": 4184314,
      "price_per_tsubo": 57.36350447281007,
      "price_per_sqm": 173524.34508184146,
      "cost_per_unit": 886.131723845828,
      "floor_per_unit": 51.066709021601014,
      "yoy": -1.4279832570285311,
      "ratio_national": 0.8911191429838737,
      "rank_in_national": 29,
      "is_spliced": false,
      "price_per_tsubo_real": 61.35134168214981,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 4852,
      "floor_total": 246490,
      "cost_total": 4351139,
      "price_per_tsubo": 58.355112965272426,
      "price_per_sqm": 176523.95634711348,
      "cost_per_unit": 896.7722588623249,
      "floor_per_unit": 50.80173124484749,
      "yoy": 1.7286400152423997,
      "ratio_national": 0.8966668039428208,
      "rank_in_national": 30,
      "is_spliced": false,
      "price_per_tsubo_real": 61.297387568563465,
      "deflator": 95.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 3749,
      "floor_total": 199101,
      "cost_total": 3486515,
      "price_per_tsubo": 57.88864155303087,
      "price_per_sqm": 175112.88240641684,
      "cost_per_unit": 929.985329421179,
      "floor_per_unit": 53.107762069885304,
      "yoy": -0.7993668224396289,
      "ratio_national": 0.8642798695193421,
      "rank_in_national": 31,
      "is_spliced": false,
      "price_per_tsubo_real": 59.00982829055135,
      "deflator": 98.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 2663,
      "floor_total": 144499,
      "cost_total": 2578465,
      "price_per_tsubo": 58.98908513103897,
      "price_per_sqm": 178441.71931985687,
      "cost_per_unit": 968.2557266241081,
      "floor_per_unit": 54.26173488546752,
      "yoy": 1.9009663182370629,
      "ratio_national": 0.8547073997889707,
      "rank_in_national": 30,
      "is_spliced": false,
      "price_per_tsubo_real": 58.87134244614668,
      "deflator": 100.2,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 1689,
      "floor_total": 88058,
      "cost_total": 1651043,
      "price_per_tsubo": 61.98189192316428,
      "price_per_sqm": 187494.94651252584,
      "cost_per_unit": 977.52693901717,
      "floor_per_unit": 52.13617525162818,
      "yoy": 5.0734924697968475,
      "ratio_national": 0.8716215528329727,
      "rank_in_national": 27,
      "is_spliced": false,
      "price_per_tsubo_real": 61.98189192316428,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 1979,
      "floor_total": 98387,
      "cost_total": 1928771,
      "price_per_tsubo": 64.8064468282395,
      "price_per_sqm": 196039.21249758606,
      "cost_per_unit": 974.6189994946943,
      "floor_per_unit": 49.7155128852956,
      "yoy": 4.5570646804016235,
      "ratio_national": 0.8862946913825899,
      "rank_in_national": 21,
      "is_spliced": false,
      "price_per_tsubo_real": 59.619546300128334,
      "deflator": 108.7,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 2473,
      "floor_total": 126199,
      "cost_total": 2705057,
      "price_per_tsubo": 70.85912233876655,
      "price_per_sqm": 214348.52891068868,
      "cost_per_unit": 1093.8362312980187,
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      "rank_in_national": 15,
      "is_spliced": false,
      "price_per_tsubo_real": 61.45630731896492,
      "deflator": 115.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 2234,
      "floor_total": 118678,
      "cost_total": 2764082,
      "price_per_tsubo": 76.99383739850688,
      "price_per_sqm": 232906.0145941118,
      "cost_per_unit": 1237.2793196060877,
      "floor_per_unit": 53.12354521038496,
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      "ratio_national": 0.9123685038649587,
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      "is_spliced": false,
      "price_per_tsubo_real": 67.00943202655081,
      "deflator": 114.9,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 2872,
      "floor_total": 152511,
      "cost_total": 3521486,
      "price_per_tsubo": 76.33084304699334,
      "price_per_sqm": 230900.45963897687,
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      "deflator": 119.3,
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    {
      "fiscal_year": 2025,
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      "floor_total": 119437,
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  ]
}