{
  "schema_version": "jp-election-municipality-proportional-swing-graph.v1",
  "dataset_id": "jp-election-db.derived-shape.graph",
  "family": "graph",
  "dataset": "municipality-proportional-swing-2025-2026",
  "source_release_version": "2026-05-03-v050",
  "selector": {
    "prefecture_code": "10",
    "prefecture_name": "群馬県",
    "prefecture_name_en": "Gunma",
    "party_id": "TMI",
    "party_label": "みらい",
    "party_label_en": "Team Mirai",
    "scope": "prefecture",
    "ranking_id": "",
    "ranking_label": "",
    "ranking_label_en": ""
  },
  "comparison": {
    "comparison_key": "20250720_hc_pr__20260208_hr_block",
    "baseline_election_set_key": "20250720_hc",
    "baseline_election_date": "2025-07-20",
    "baseline_vote_system": "pr",
    "target_election_set_key": "20260208_hr",
    "target_election_date": "2026-02-08",
    "target_vote_system": "block"
  },
  "metric": {
    "primary_metric_id": "votes_change_rate_pct",
    "primary_metric_label": "票数増減率",
    "secondary_metric_id": "votes_delta",
    "secondary_metric_label": "票数差"
  },
  "summary": {
    "point_grain": "municipality",
    "point_count": 35,
    "municipality_count": 35,
    "min_votes_change_rate_pct": 222.222222,
    "max_votes_change_rate_pct": 1100.0
  },
  "municipalities": [
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "103837",
      "municipality_name": "南牧村",
      "municipality_name_en": "Nammoku-mura",
      "baseline_votes": 3.0,
      "target_votes": 36.0,
      "votes_delta": 33.0,
      "votes_change_rate_pct": 1100.0,
      "baseline_vote_share_pct_muni": 0.337458,
      "target_vote_share_pct_muni": 4.072398,
      "vote_share_delta_pct_pt": 3.73494
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "103829",
      "municipality_name": "下仁田町",
      "municipality_name_en": "Shimonita-machi",
      "baseline_votes": 19.0,
      "target_votes": 175.0,
      "votes_delta": 156.0,
      "votes_change_rate_pct": 821.052632,
      "baseline_vote_share_pct_muni": 0.607611,
      "target_vote_share_pct_muni": 5.592841,
      "vote_share_delta_pct_pt": 4.98523
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "105236",
      "municipality_name": "千代田町",
      "municipality_name_en": "Chiyoda-machi",
      "baseline_votes": 32.0,
      "target_votes": 251.0,
      "votes_delta": 219.0,
      "votes_change_rate_pct": 684.375,
      "baseline_vote_share_pct_muni": 0.666806,
      "target_vote_share_pct_muni": 5.096447,
      "vote_share_delta_pct_pt": 4.429641
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104213",
      "municipality_name": "中之条町",
      "municipality_name_en": "Nakanojo-machi",
      "baseline_votes": 58.0,
      "target_votes": 431.0,
      "votes_delta": 373.0,
      "votes_change_rate_pct": 643.103448,
      "baseline_vote_share_pct_muni": 0.730663,
      "target_vote_share_pct_muni": 5.311152,
      "vote_share_delta_pct_pt": 4.580489
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "103845",
      "municipality_name": "甘楽町",
      "municipality_name_en": "Kanra-machi",
      "baseline_votes": 47.0,
      "target_votes": 349.0,
      "votes_delta": 302.0,
      "votes_change_rate_pct": 642.553191,
      "baseline_vote_share_pct_muni": 0.783203,
      "target_vote_share_pct_muni": 5.64086,
      "vote_share_delta_pct_pt": 4.857657
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104299",
      "municipality_name": "東吾妻町",
      "municipality_name_en": "Higashiagatsuma-machi",
      "baseline_votes": 49.0,
      "target_votes": 309.0,
      "votes_delta": 260.0,
      "votes_change_rate_pct": 530.612245,
      "baseline_vote_share_pct_muni": 0.77214,
      "target_vote_share_pct_muni": 4.614695,
      "vote_share_delta_pct_pt": 3.842555
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104264",
      "municipality_name": "草津町",
      "municipality_name_en": "Kusatsu-machi",
      "baseline_votes": 19.0,
      "target_votes": 118.0,
      "votes_delta": 99.0,
      "votes_change_rate_pct": 521.052632,
      "baseline_vote_share_pct_muni": 0.68741,
      "target_vote_share_pct_muni": 4.495238,
      "vote_share_delta_pct_pt": 3.807828
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "105228",
      "municipality_name": "明和町",
      "municipality_name_en": "Meiwa-machi",
      "baseline_votes": 53.0,
      "target_votes": 319.0,
      "votes_delta": 266.0,
      "votes_change_rate_pct": 501.886792,
      "baseline_vote_share_pct_muni": 0.97337,
      "target_vote_share_pct_muni": 5.856435,
      "vote_share_delta_pct_pt": 4.883065
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "105210",
      "municipality_name": "板倉町",
      "municipality_name_en": "Itakura-machi",
      "baseline_votes": 65.0,
      "target_votes": 384.0,
      "votes_delta": 319.0,
      "votes_change_rate_pct": 490.769231,
      "baseline_vote_share_pct_muni": 0.996933,
      "target_vote_share_pct_muni": 5.875153,
      "vote_share_delta_pct_pt": 4.87822
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104647",
      "municipality_name": "玉村町",
      "municipality_name_en": "Tamamura-machi",
      "baseline_votes": 180.0,
      "target_votes": 1058.0,
      "votes_delta": 878.0,
      "votes_change_rate_pct": 487.777778,
      "baseline_vote_share_pct_muni": 1.126408,
      "target_vote_share_pct_muni": 6.806485,
      "vote_share_delta_pct_pt": 5.680077
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104434",
      "municipality_name": "片品村",
      "municipality_name_en": "Katashina-mura",
      "baseline_votes": 16.0,
      "target_votes": 90.0,
      "votes_delta": 74.0,
      "votes_change_rate_pct": 462.5,
      "baseline_vote_share_pct_muni": 0.831169,
      "target_vote_share_pct_muni": 4.68506,
      "vote_share_delta_pct_pt": 3.853891
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "102113",
      "municipality_name": "安中市",
      "municipality_name_en": "Annaka-shi",
      "baseline_votes": 269.0,
      "target_votes": 1494.0,
      "votes_delta": 1225.0,
      "votes_change_rate_pct": 455.390335,
      "baseline_vote_share_pct_muni": 1.051973,
      "target_vote_share_pct_muni": 5.92669,
      "vote_share_delta_pct_pt": 4.874717
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "102032",
      "municipality_name": "桐生市",
      "municipality_name_en": "Kiryu-shi",
      "baseline_votes": 535.0,
      "target_votes": 2880.0,
      "votes_delta": 2345.0,
      "votes_change_rate_pct": 438.317757,
      "baseline_vote_share_pct_muni": 1.19409,
      "target_vote_share_pct_muni": 6.706877,
      "vote_share_delta_pct_pt": 5.512787
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "103446",
      "municipality_name": "榛東村",
      "municipality_name_en": "Shinto-mura",
      "baseline_votes": 77.0,
      "target_votes": 410.0,
      "votes_delta": 333.0,
      "votes_change_rate_pct": 432.467532,
      "baseline_vote_share_pct_muni": 1.13202,
      "target_vote_share_pct_muni": 6.2816,
      "vote_share_delta_pct_pt": 5.14958
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "102067",
      "municipality_name": "沼田市",
      "municipality_name_en": "Numata-shi",
      "baseline_votes": 200.0,
      "target_votes": 1061.0,
      "votes_delta": 861.0,
      "votes_change_rate_pct": 430.5,
      "baseline_vote_share_pct_muni": 1.04107,
      "target_vote_share_pct_muni": 5.438794,
      "vote_share_delta_pct_pt": 4.397724
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "102105",
      "municipality_name": "富岡市",
      "municipality_name_en": "Tomioka-shi",
      "baseline_votes": 248.0,
      "target_votes": 1311.0,
      "votes_delta": 1063.0,
      "votes_change_rate_pct": 428.629032,
      "baseline_vote_share_pct_muni": 1.24498,
      "target_vote_share_pct_muni": 6.547797,
      "vote_share_delta_pct_pt": 5.302817
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104442",
      "municipality_name": "川場村",
      "municipality_name_en": "Kawaba-mura",
      "baseline_votes": 14.0,
      "target_votes": 73.0,
      "votes_delta": 59.0,
      "votes_change_rate_pct": 421.428571,
      "baseline_vote_share_pct_muni": 0.890019,
      "target_vote_share_pct_muni": 4.56821,
      "vote_share_delta_pct_pt": 3.678191
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "102091",
      "municipality_name": "藤岡市",
      "municipality_name_en": "Fujioka-shi",
      "baseline_votes": 323.0,
      "target_votes": 1672.0,
      "votes_delta": 1349.0,
      "votes_change_rate_pct": 417.647059,
      "baseline_vote_share_pct_muni": 1.117879,
      "target_vote_share_pct_muni": 5.967166,
      "vote_share_delta_pct_pt": 4.849287
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "102121",
      "municipality_name": "みどり市",
      "municipality_name_en": "Midori-shi",
      "baseline_votes": 234.0,
      "target_votes": 1203.0,
      "votes_delta": 969.0,
      "votes_change_rate_pct": 414.102564,
      "baseline_vote_share_pct_muni": 1.118814,
      "target_vote_share_pct_muni": 5.992827,
      "vote_share_delta_pct_pt": 4.874013
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "102083",
      "municipality_name": "渋川市",
      "municipality_name_en": "Shibukawa-shi",
      "baseline_votes": 383.0,
      "target_votes": 1956.0,
      "votes_delta": 1573.0,
      "votes_change_rate_pct": 410.704961,
      "baseline_vote_share_pct_muni": 1.216259,
      "target_vote_share_pct_muni": 6.459069,
      "vote_share_delta_pct_pt": 5.24281
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "102075",
      "municipality_name": "館林市",
      "municipality_name_en": "Tatebayashi-shi",
      "baseline_votes": 395.0,
      "target_votes": 2006.0,
      "votes_delta": 1611.0,
      "votes_change_rate_pct": 407.848101,
      "baseline_vote_share_pct_muni": 1.228005,
      "target_vote_share_pct_muni": 6.398724,
      "vote_share_delta_pct_pt": 5.170719
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104493",
      "municipality_name": "みなかみ町",
      "municipality_name_en": "Minakami-machi",
      "baseline_votes": 88.0,
      "target_votes": 443.0,
      "votes_delta": 355.0,
      "votes_change_rate_pct": 403.409091,
      "baseline_vote_share_pct_muni": 1.069259,
      "target_vote_share_pct_muni": 5.307296,
      "vote_share_delta_pct_pt": 4.238037
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "102040",
      "municipality_name": "伊勢崎市",
      "municipality_name_en": "Isesaki-shi",
      "baseline_votes": 1111.0,
      "target_votes": 5563.0,
      "votes_delta": 4452.0,
      "votes_change_rate_pct": 400.720072,
      "baseline_vote_share_pct_muni": 1.315758,
      "target_vote_share_pct_muni": 6.617105,
      "vote_share_delta_pct_pt": 5.301347
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104248",
      "municipality_name": "長野原町",
      "municipality_name_en": "Naganohara-machi",
      "baseline_votes": 25.0,
      "target_votes": 125.0,
      "votes_delta": 100.0,
      "votes_change_rate_pct": 400.0,
      "baseline_vote_share_pct_muni": 0.919794,
      "target_vote_share_pct_muni": 4.418522,
      "vote_share_delta_pct_pt": 3.498728
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104485",
      "municipality_name": "昭和村",
      "municipality_name_en": "Showa-mura",
      "baseline_votes": 31.0,
      "target_votes": 152.0,
      "votes_delta": 121.0,
      "votes_change_rate_pct": 390.322581,
      "baseline_vote_share_pct_muni": 1.023102,
      "target_vote_share_pct_muni": 4.745551,
      "vote_share_delta_pct_pt": 3.722449
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "105252",
      "municipality_name": "邑楽町",
      "municipality_name_en": "Ora-machi",
      "baseline_votes": 127.0,
      "target_votes": 621.0,
      "votes_delta": 494.0,
      "votes_change_rate_pct": 388.976378,
      "baseline_vote_share_pct_muni": 1.045009,
      "target_vote_share_pct_muni": 5.216734,
      "vote_share_delta_pct_pt": 4.171725
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "102016",
      "municipality_name": "前橋市",
      "municipality_name_en": "Maebashi-shi",
      "baseline_votes": 2385.956,
      "target_votes": 11310.0,
      "votes_delta": 8924.044,
      "votes_change_rate_pct": 374.023829,
      "baseline_vote_share_pct_muni": 1.67823,
      "target_vote_share_pct_muni": 8.220313,
      "vote_share_delta_pct_pt": 6.542083
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "105244",
      "municipality_name": "大泉町",
      "municipality_name_en": "Oizumi-machi",
      "baseline_votes": 198.0,
      "target_votes": 908.0,
      "votes_delta": 710.0,
      "votes_change_rate_pct": 358.585859,
      "baseline_vote_share_pct_muni": 1.324858,
      "target_vote_share_pct_muni": 6.295937,
      "vote_share_delta_pct_pt": 4.971079
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "102059",
      "municipality_name": "太田市",
      "municipality_name_en": "Ota-shi",
      "baseline_votes": 1214.0,
      "target_votes": 5539.0,
      "votes_delta": 4325.0,
      "votes_change_rate_pct": 356.260297,
      "baseline_vote_share_pct_muni": 1.342282,
      "target_vote_share_pct_muni": 6.411993,
      "vote_share_delta_pct_pt": 5.069711
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104256",
      "municipality_name": "嬬恋村",
      "municipality_name_en": "Tsumagoi-mura",
      "baseline_votes": 54.0,
      "target_votes": 245.0,
      "votes_delta": 191.0,
      "votes_change_rate_pct": 353.703704,
      "baseline_vote_share_pct_muni": 1.251448,
      "target_vote_share_pct_muni": 5.262027,
      "vote_share_delta_pct_pt": 4.010579
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104280",
      "municipality_name": "高山村",
      "municipality_name_en": "Takayama-mura",
      "baseline_votes": 19.0,
      "target_votes": 86.0,
      "votes_delta": 67.0,
      "votes_change_rate_pct": 352.631579,
      "baseline_vote_share_pct_muni": 1.148036,
      "target_vote_share_pct_muni": 5.162065,
      "vote_share_delta_pct_pt": 4.014029
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "103675",
      "municipality_name": "神流町",
      "municipality_name_en": "Kanna-machi",
      "baseline_votes": 8.0,
      "target_votes": 36.0,
      "votes_delta": 28.0,
      "votes_change_rate_pct": 350.0,
      "baseline_vote_share_pct_muni": 0.808081,
      "target_vote_share_pct_muni": 3.607214,
      "vote_share_delta_pct_pt": 2.799133
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "103454",
      "municipality_name": "吉岡町",
      "municipality_name_en": "Yoshioka-machi",
      "baseline_votes": 190.0,
      "target_votes": 767.0,
      "votes_delta": 577.0,
      "votes_change_rate_pct": 303.684211,
      "baseline_vote_share_pct_muni": 1.877099,
      "target_vote_share_pct_muni": 8.063499,
      "vote_share_delta_pct_pt": 6.1864
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "102024",
      "municipality_name": "高崎市",
      "municipality_name_en": "Takasaki-shi",
      "baseline_votes": 2887.0040000000004,
      "target_votes": 10744.0,
      "votes_delta": 7856.995999999999,
      "votes_change_rate_pct": 272.150506,
      "baseline_vote_share_pct_muni": 1.671687,
      "target_vote_share_pct_muni": 8.202529,
      "vote_share_delta_pct_pt": 6.530842
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "103667",
      "municipality_name": "上野村",
      "municipality_name_en": "Ueno-mura",
      "baseline_votes": 9.0,
      "target_votes": 29.0,
      "votes_delta": 20.0,
      "votes_change_rate_pct": 222.222222,
      "baseline_vote_share_pct_muni": 1.388889,
      "target_vote_share_pct_muni": 4.482226,
      "vote_share_delta_pct_pt": 3.093337
    }
  ]
}
