{
  "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": "37",
    "prefecture_name": "香川県",
    "prefecture_name_en": "Kagawa",
    "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": 17,
    "municipality_count": 17,
    "min_votes_change_rate_pct": 54.526257,
    "max_votes_change_rate_pct": 178.668054
  },
  "municipalities": [
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "372056",
      "municipality_name": "観音寺市",
      "municipality_name_en": "Kanonji-shi",
      "baseline_votes": 961.0,
      "target_votes": 2678.0,
      "votes_delta": 1717.0,
      "votes_change_rate_pct": 178.668054,
      "baseline_vote_share_pct_muni": 3.827618,
      "target_vote_share_pct_muni": 10.49661,
      "vote_share_delta_pct_pt": 6.668992
    },
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "374032",
      "municipality_name": "琴平町",
      "municipality_name_en": "Kotohira-cho",
      "baseline_votes": 130.0,
      "target_votes": 331.0,
      "votes_delta": 201.0,
      "votes_change_rate_pct": 154.615385,
      "baseline_vote_share_pct_muni": 3.405816,
      "target_vote_share_pct_muni": 8.735814,
      "vote_share_delta_pct_pt": 5.329998
    },
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "372080",
      "municipality_name": "三豊市",
      "municipality_name_en": "Mitoyo-shi",
      "baseline_votes": 1051.107,
      "target_votes": 2558.0,
      "votes_delta": 1506.893,
      "votes_change_rate_pct": 143.362474,
      "baseline_vote_share_pct_muni": 3.749,
      "target_vote_share_pct_muni": 9.206738,
      "vote_share_delta_pct_pt": 5.457738
    },
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "374067",
      "municipality_name": "まんのう町",
      "municipality_name_en": "Manno-cho",
      "baseline_votes": 242.0,
      "target_votes": 570.0,
      "votes_delta": 328.0,
      "votes_change_rate_pct": 135.53719,
      "baseline_vote_share_pct_muni": 3.144491,
      "target_vote_share_pct_muni": 7.412224,
      "vote_share_delta_pct_pt": 4.267733
    },
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "374040",
      "municipality_name": "多度津町",
      "municipality_name_en": "Tadotsu-cho",
      "baseline_votes": 371.0,
      "target_votes": 837.0,
      "votes_delta": 466.0,
      "votes_change_rate_pct": 125.606469,
      "baseline_vote_share_pct_muni": 3.850545,
      "target_vote_share_pct_muni": 8.832841,
      "vote_share_delta_pct_pt": 4.982296
    },
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "373222",
      "municipality_name": "土庄町",
      "municipality_name_en": "Tonosho-cho",
      "baseline_votes": 230.0,
      "target_votes": 502.0,
      "votes_delta": 272.0,
      "votes_change_rate_pct": 118.26087,
      "baseline_vote_share_pct_muni": 3.598811,
      "target_vote_share_pct_muni": 7.529624,
      "vote_share_delta_pct_pt": 3.930813
    },
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "372048",
      "municipality_name": "善通寺市",
      "municipality_name_en": "Zentsuji-shi",
      "baseline_votes": 483.023,
      "target_votes": 1049.0,
      "votes_delta": 565.977,
      "votes_change_rate_pct": 117.173923,
      "baseline_vote_share_pct_muni": 3.50423,
      "target_vote_share_pct_muni": 7.768644,
      "vote_share_delta_pct_pt": 4.264414
    },
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "372072",
      "municipality_name": "東かがわ市",
      "municipality_name_en": "Higashikagawa-shi",
      "baseline_votes": 314.0,
      "target_votes": 598.0,
      "votes_delta": 284.0,
      "votes_change_rate_pct": 90.44586,
      "baseline_vote_share_pct_muni": 2.326443,
      "target_vote_share_pct_muni": 4.353207,
      "vote_share_delta_pct_pt": 2.026764
    },
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "373249",
      "municipality_name": "小豆島町",
      "municipality_name_en": "Shodoshima-cho",
      "baseline_votes": 258.0,
      "target_votes": 477.0,
      "votes_delta": 219.0,
      "votes_change_rate_pct": 84.883721,
      "baseline_vote_share_pct_muni": 3.878533,
      "target_vote_share_pct_muni": 6.93314,
      "vote_share_delta_pct_pt": 3.054607
    },
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "373877",
      "municipality_name": "綾川町",
      "municipality_name_en": "Ayagawa-cho",
      "baseline_votes": 278.0,
      "target_votes": 510.0,
      "votes_delta": 232.0,
      "votes_change_rate_pct": 83.453237,
      "baseline_vote_share_pct_muni": 2.407135,
      "target_vote_share_pct_muni": 4.340056,
      "vote_share_delta_pct_pt": 1.932921
    },
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "372030",
      "municipality_name": "坂出市",
      "municipality_name_en": "Sakaide-shi",
      "baseline_votes": 593.0,
      "target_votes": 1076.0,
      "votes_delta": 483.0,
      "votes_change_rate_pct": 81.450253,
      "baseline_vote_share_pct_muni": 2.672977,
      "target_vote_share_pct_muni": 4.663662,
      "vote_share_delta_pct_pt": 1.990685
    },
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "372021",
      "municipality_name": "丸亀市",
      "municipality_name_en": "Marugame-shi",
      "baseline_votes": 1689.0,
      "target_votes": 3059.0,
      "votes_delta": 1370.0,
      "votes_change_rate_pct": 81.113085,
      "baseline_vote_share_pct_muni": 3.484486,
      "target_vote_share_pct_muni": 8.616901,
      "vote_share_delta_pct_pt": 5.132415
    },
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "373419",
      "municipality_name": "三木町",
      "municipality_name_en": "Miki-cho",
      "baseline_votes": 337.0,
      "target_votes": 602.0,
      "votes_delta": 265.0,
      "votes_change_rate_pct": 78.635015,
      "baseline_vote_share_pct_muni": 2.589718,
      "target_vote_share_pct_muni": 4.680818,
      "vote_share_delta_pct_pt": 2.0911
    },
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "373648",
      "municipality_name": "直島町",
      "municipality_name_en": "Naoshima-cho",
      "baseline_votes": 64.0,
      "target_votes": 114.0,
      "votes_delta": 50.0,
      "votes_change_rate_pct": 78.125,
      "baseline_vote_share_pct_muni": 4.216074,
      "target_vote_share_pct_muni": 7.797538,
      "vote_share_delta_pct_pt": 3.581464
    },
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "373869",
      "municipality_name": "宇多津町",
      "municipality_name_en": "Utazu-cho",
      "baseline_votes": 323.0,
      "target_votes": 546.0,
      "votes_delta": 223.0,
      "votes_change_rate_pct": 69.040248,
      "baseline_vote_share_pct_muni": 3.902852,
      "target_vote_share_pct_muni": 6.60058,
      "vote_share_delta_pct_pt": 2.697728
    },
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "372064",
      "municipality_name": "さぬき市",
      "municipality_name_en": "Sanuki-shi",
      "baseline_votes": 455.0,
      "target_votes": 768.0,
      "votes_delta": 313.0,
      "votes_change_rate_pct": 68.791209,
      "baseline_vote_share_pct_muni": 2.05223,
      "target_vote_share_pct_muni": 3.451996,
      "vote_share_delta_pct_pt": 1.399766
    },
    {
      "prefecture_code": "37",
      "prefecture_name": "香川県",
      "prefecture_name_en": "Kagawa",
      "jis_code": "372013",
      "municipality_name": "高松市",
      "municipality_name_en": "Takamatsu-shi",
      "baseline_votes": 7103.0,
      "target_votes": 10976.0,
      "votes_delta": 3873.0,
      "votes_change_rate_pct": 54.526257,
      "baseline_vote_share_pct_muni": 3.65951,
      "target_vote_share_pct_muni": 7.025359,
      "vote_share_delta_pct_pt": 3.365849
    }
  ]
}