{
  "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": "13",
    "prefecture_name": "東京都",
    "prefecture_name_en": "Tokyo",
    "party_id": "ISH",
    "party_label": "維新",
    "party_label_en": "Japan Innovation Party (Ishin)",
    "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": 62,
    "municipality_count": 62,
    "min_votes_change_rate_pct": -50.0,
    "max_votes_change_rate_pct": 66.666667
  },
  "municipalities": [
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "133817",
      "municipality_name": "三宅村",
      "municipality_name_en": "Miyake-mura",
      "baseline_votes": 33.0,
      "target_votes": 55.0,
      "votes_delta": 22.0,
      "votes_change_rate_pct": 66.666667,
      "baseline_vote_share_pct_muni": 3.225806,
      "target_vote_share_pct_muni": 4.968383,
      "vote_share_delta_pct_pt": 1.742577
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "133825",
      "municipality_name": "御蔵島村",
      "municipality_name_en": "Mikurajima-mura",
      "baseline_votes": 8.0,
      "target_votes": 11.0,
      "votes_delta": 3.0,
      "votes_change_rate_pct": 37.5,
      "baseline_vote_share_pct_muni": 4.571429,
      "target_vote_share_pct_muni": 6.285714,
      "vote_share_delta_pct_pt": 1.714285
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "134023",
      "municipality_name": "青ヶ島村",
      "municipality_name_en": "Aogashima-mura",
      "baseline_votes": 6.0,
      "target_votes": 8.0,
      "votes_delta": 2.0,
      "votes_change_rate_pct": 33.333333,
      "baseline_vote_share_pct_muni": 5.405405,
      "target_vote_share_pct_muni": 7.017544,
      "vote_share_delta_pct_pt": 1.612139
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "133612",
      "municipality_name": "大島町",
      "municipality_name_en": "Oshima-machi",
      "baseline_votes": 96.0,
      "target_votes": 125.0,
      "votes_delta": 29.0,
      "votes_change_rate_pct": 30.208333,
      "baseline_vote_share_pct_muni": 3.013183,
      "target_vote_share_pct_muni": 3.740275,
      "vote_share_delta_pct_pt": 0.727092
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "131229",
      "municipality_name": "葛飾区",
      "municipality_name_en": "Katsushika-ku",
      "baseline_votes": 12154.0,
      "target_votes": 14611.0,
      "votes_delta": 2457.0,
      "votes_change_rate_pct": 20.215567,
      "baseline_vote_share_pct_muni": 5.561072,
      "target_vote_share_pct_muni": 7.099577,
      "vote_share_delta_pct_pt": 1.538505
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "133035",
      "municipality_name": "瑞穂町",
      "municipality_name_en": "Mizuho-machi",
      "baseline_votes": 600.0,
      "target_votes": 710.0,
      "votes_delta": 110.0,
      "votes_change_rate_pct": 18.333333,
      "baseline_vote_share_pct_muni": 4.410792,
      "target_vote_share_pct_muni": 5.41654,
      "vote_share_delta_pct_pt": 1.005748
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "133051",
      "municipality_name": "日の出町",
      "municipality_name_en": "Hinode-machi",
      "baseline_votes": 327.0,
      "target_votes": 385.0,
      "votes_delta": 58.0,
      "votes_change_rate_pct": 17.737003,
      "baseline_vote_share_pct_muni": 4.478839,
      "target_vote_share_pct_muni": 5.305954,
      "vote_share_delta_pct_pt": 0.827115
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "133086",
      "municipality_name": "奥多摩町",
      "municipality_name_en": "Okutama-machi",
      "baseline_votes": 90.0,
      "target_votes": 105.0,
      "votes_delta": 15.0,
      "votes_change_rate_pct": 16.666667,
      "baseline_vote_share_pct_muni": 4.132231,
      "target_vote_share_pct_muni": 4.847645,
      "vote_share_delta_pct_pt": 0.715414
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "131083",
      "municipality_name": "江東区",
      "municipality_name_en": "Koto-ku",
      "baseline_votes": 15630.264,
      "target_votes": 17915.0,
      "votes_delta": 2284.736,
      "votes_change_rate_pct": 14.617386,
      "baseline_vote_share_pct_muni": 5.911642,
      "target_vote_share_pct_muni": 6.867063,
      "vote_share_delta_pct_pt": 0.955421
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "132284",
      "municipality_name": "あきる野市",
      "municipality_name_en": "Akiruno-shi",
      "baseline_votes": 1708.0,
      "target_votes": 1950.0,
      "votes_delta": 242.0,
      "votes_change_rate_pct": 14.168618,
      "baseline_vote_share_pct_muni": 4.67024,
      "target_vote_share_pct_muni": 5.512679,
      "vote_share_delta_pct_pt": 0.842439
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "132276",
      "municipality_name": "羽村市",
      "municipality_name_en": "Hamura-shi",
      "baseline_votes": 1259.0,
      "target_votes": 1432.0,
      "votes_delta": 173.0,
      "votes_change_rate_pct": 13.741064,
      "baseline_vote_share_pct_muni": 5.016336,
      "target_vote_share_pct_muni": 5.913934,
      "vote_share_delta_pct_pt": 0.897598
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "132055",
      "municipality_name": "青梅市",
      "municipality_name_en": "Ome-shi",
      "baseline_votes": 3122.0,
      "target_votes": 3501.0,
      "votes_delta": 379.0,
      "votes_change_rate_pct": 12.139654,
      "baseline_vote_share_pct_muni": 5.153516,
      "target_vote_share_pct_muni": 5.940544,
      "vote_share_delta_pct_pt": 0.787028
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "134015",
      "municipality_name": "八丈町",
      "municipality_name_en": "Hachijo-machi",
      "baseline_votes": 132.0,
      "target_votes": 148.0,
      "votes_delta": 16.0,
      "votes_change_rate_pct": 12.121212,
      "baseline_vote_share_pct_muni": 4.072817,
      "target_vote_share_pct_muni": 4.197391,
      "vote_share_delta_pct_pt": 0.124574
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "132071",
      "municipality_name": "昭島市",
      "municipality_name_en": "Akishima-shi",
      "baseline_votes": 2766.0,
      "target_votes": 3081.0,
      "votes_delta": 315.0,
      "votes_change_rate_pct": 11.388286,
      "baseline_vote_share_pct_muni": 5.056673,
      "target_vote_share_pct_muni": 5.761248,
      "vote_share_delta_pct_pt": 0.704575
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "131067",
      "municipality_name": "台東区",
      "municipality_name_en": "Taito-ku",
      "baseline_votes": 6251.0,
      "target_votes": 6943.0,
      "votes_delta": 692.0,
      "votes_change_rate_pct": 11.070229,
      "baseline_vote_share_pct_muni": 5.765914,
      "target_vote_share_pct_muni": 6.626012,
      "vote_share_delta_pct_pt": 0.860098
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "132187",
      "municipality_name": "福生市",
      "municipality_name_en": "Fussa-shi",
      "baseline_votes": 1337.0,
      "target_votes": 1477.0,
      "votes_delta": 140.0,
      "votes_change_rate_pct": 10.471204,
      "baseline_vote_share_pct_muni": 5.187197,
      "target_vote_share_pct_muni": 5.987029,
      "vote_share_delta_pct_pt": 0.799832
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "131172",
      "municipality_name": "北区",
      "municipality_name_en": "Kita-ku",
      "baseline_votes": 12111.172,
      "target_votes": 13079.0,
      "votes_delta": 967.828,
      "votes_change_rate_pct": 7.9912,
      "baseline_vote_share_pct_muni": 6.64088,
      "target_vote_share_pct_muni": 7.368077,
      "vote_share_delta_pct_pt": 0.727197
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "131016",
      "municipality_name": "千代田区",
      "municipality_name_en": "Chiyoda-ku",
      "baseline_votes": 2013.0,
      "target_votes": 2167.0,
      "votes_delta": 154.0,
      "votes_change_rate_pct": 7.650273,
      "baseline_vote_share_pct_muni": 5.744699,
      "target_vote_share_pct_muni": 6.0502,
      "vote_share_delta_pct_pt": 0.305501
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "131091",
      "municipality_name": "品川区",
      "municipality_name_en": "Shinagawa-ku",
      "baseline_votes": 13421.0,
      "target_votes": 14297.0,
      "votes_delta": 876.0,
      "votes_change_rate_pct": 6.527084,
      "baseline_vote_share_pct_muni": 6.329048,
      "target_vote_share_pct_muni": 6.819363,
      "vote_share_delta_pct_pt": 0.490315
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "131032",
      "municipality_name": "港区",
      "municipality_name_en": "Minato-ku",
      "baseline_votes": 7401.0,
      "target_votes": 7792.0,
      "votes_delta": 391.0,
      "votes_change_rate_pct": 5.28307,
      "baseline_vote_share_pct_muni": 6.196572,
      "target_vote_share_pct_muni": 6.411586,
      "vote_share_delta_pct_pt": 0.215014
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "131040",
      "municipality_name": "新宿区",
      "municipality_name_en": "Shinjuku-ku",
      "baseline_votes": 8726.0,
      "target_votes": 9055.0,
      "votes_delta": 329.0,
      "votes_change_rate_pct": 3.770342,
      "baseline_vote_share_pct_muni": 5.355477,
      "target_vote_share_pct_muni": 5.706273,
      "vote_share_delta_pct_pt": 0.350796
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "133647",
      "municipality_name": "神津島村",
      "municipality_name_en": "Kouzushima-mura",
      "baseline_votes": 39.0,
      "target_votes": 40.0,
      "votes_delta": 1.0,
      "votes_change_rate_pct": 2.564103,
      "baseline_vote_share_pct_muni": 4.446978,
      "target_vote_share_pct_muni": 4.310345,
      "vote_share_delta_pct_pt": -0.136633
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "131024",
      "municipality_name": "中央区",
      "municipality_name_en": "Chuo-ku",
      "baseline_votes": 6658.0,
      "target_votes": 6825.0,
      "votes_delta": 167.0,
      "votes_change_rate_pct": 2.508261,
      "baseline_vote_share_pct_muni": 7.094677,
      "target_vote_share_pct_muni": 7.270771,
      "vote_share_delta_pct_pt": 0.176094
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "132209",
      "municipality_name": "東大和市",
      "municipality_name_en": "Higashiyamato-shi",
      "baseline_votes": 1946.0,
      "target_votes": 1950.0,
      "votes_delta": 4.0,
      "votes_change_rate_pct": 0.20555,
      "baseline_vote_share_pct_muni": 4.669578,
      "target_vote_share_pct_muni": 4.878171,
      "vote_share_delta_pct_pt": 0.208593
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "131130",
      "municipality_name": "渋谷区",
      "municipality_name_en": "Shibuya-ku",
      "baseline_votes": 6541.0,
      "target_votes": 6554.0,
      "votes_delta": 13.0,
      "votes_change_rate_pct": 0.198746,
      "baseline_vote_share_pct_muni": 5.589786,
      "target_vote_share_pct_muni": 5.72832,
      "vote_share_delta_pct_pt": 0.138534
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "131075",
      "municipality_name": "墨田区",
      "municipality_name_en": "Sumida-ku",
      "baseline_votes": 8732.6,
      "target_votes": 8525.0,
      "votes_delta": -207.6,
      "votes_change_rate_pct": -2.377299,
      "baseline_vote_share_pct_muni": 5.993672,
      "target_vote_share_pct_muni": 6.043099,
      "vote_share_delta_pct_pt": 0.049427
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "133078",
      "municipality_name": "檜原村",
      "municipality_name_en": "Hinohara-mura",
      "baseline_votes": 38.0,
      "target_votes": 37.0,
      "votes_delta": -1.0,
      "votes_change_rate_pct": -2.631579,
      "baseline_vote_share_pct_muni": 3.591682,
      "target_vote_share_pct_muni": 3.567985,
      "vote_share_delta_pct_pt": -0.023697
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "133639",
      "municipality_name": "新島村",
      "municipality_name_en": "Niijima-mura",
      "baseline_votes": 62.0,
      "target_votes": 60.0,
      "votes_delta": -2.0,
      "votes_change_rate_pct": -3.225806,
      "baseline_vote_share_pct_muni": 5.496454,
      "target_vote_share_pct_muni": 4.633205,
      "vote_share_delta_pct_pt": -0.863249
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "132101",
      "municipality_name": "小金井市",
      "municipality_name_en": "Koganei-shi",
      "baseline_votes": 3237.0,
      "target_votes": 3105.0,
      "votes_delta": -132.0,
      "votes_change_rate_pct": -4.07785,
      "baseline_vote_share_pct_muni": 4.971739,
      "target_vote_share_pct_muni": 4.799963,
      "vote_share_delta_pct_pt": -0.171776
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "132039",
      "municipality_name": "武蔵野市",
      "municipality_name_en": "Musashino-shi",
      "baseline_votes": 4136.0,
      "target_votes": 3966.0,
      "votes_delta": -170.0,
      "votes_change_rate_pct": -4.110251,
      "baseline_vote_share_pct_muni": 5.119699,
      "target_vote_share_pct_muni": 4.911029,
      "vote_share_delta_pct_pt": -0.20867
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "131148",
      "municipality_name": "中野区",
      "municipality_name_en": "Nakano-ku",
      "baseline_votes": 8631.0,
      "target_votes": 8246.0,
      "votes_delta": -385.0,
      "votes_change_rate_pct": -4.460665,
      "baseline_vote_share_pct_muni": 4.972805,
      "target_vote_share_pct_muni": 4.909561,
      "vote_share_delta_pct_pt": -0.063244
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "132136",
      "municipality_name": "東村山市",
      "municipality_name_en": "Higashimurayama-shi",
      "baseline_votes": 3819.0,
      "target_votes": 3586.0,
      "votes_delta": -233.0,
      "votes_change_rate_pct": -6.101074,
      "baseline_vote_share_pct_muni": 5.036797,
      "target_vote_share_pct_muni": 4.89797,
      "vote_share_delta_pct_pt": -0.138827
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "132217",
      "municipality_name": "清瀬市",
      "municipality_name_en": "Kiyose-shi",
      "baseline_votes": 1732.0,
      "target_votes": 1617.0,
      "votes_delta": -115.0,
      "votes_change_rate_pct": -6.639723,
      "baseline_vote_share_pct_muni": 4.586379,
      "target_vote_share_pct_muni": 4.444139,
      "vote_share_delta_pct_pt": -0.14224
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "132233",
      "municipality_name": "武蔵村山市",
      "municipality_name_en": "Musashimurayama-shi",
      "baseline_votes": 1297.0,
      "target_votes": 1206.0,
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