{
  "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",
  "point_grain": "municipality",
  "selector": {
    "prefecture_code": "",
    "prefecture_name": "",
    "prefecture_name_en": "",
    "region_id": "shikoku",
    "region_name": "四国地方",
    "region_name_en": "Shikoku Region",
    "party_id": "ISH",
    "party_label": "維新",
    "party_label_en": "Japan Innovation Party (Ishin)",
    "scope": "region",
    "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": 95,
    "municipality_count": 95,
    "min_votes_change_rate_pct": -13.673749,
    "max_votes_change_rate_pct": 600.0
  },
  "municipalities": [
    {
      "prefecture_code": "39",
      "prefecture_name": "高知県",
      "prefecture_name_en": "Kochi",
      "jis_code": "393649",
      "municipality_name": "大川村",
      "municipality_name_en": "Okawa-mura",
      "baseline_votes": 1.0,
      "target_votes": 7.0,
      "votes_delta": 6.0,
      "votes_change_rate_pct": 600.0,
      "baseline_vote_share_pct_muni": 0.462963,
      "target_vote_share_pct_muni": 3.414634,
      "vote_share_delta_pct_pt": 2.951671
    },
    {
      "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": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "363421",
      "municipality_name": "神山町",
      "municipality_name_en": "Kamiyama-cho",
      "baseline_votes": 75.0,
      "target_votes": 203.0,
      "votes_delta": 128.0,
      "votes_change_rate_pct": 170.666667,
      "baseline_vote_share_pct_muni": 3.830439,
      "target_vote_share_pct_muni": 9.050379,
      "vote_share_delta_pct_pt": 5.21994
    },
    {
      "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": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "363014",
      "municipality_name": "勝浦町",
      "municipality_name_en": "Katsuura-cho",
      "baseline_votes": 86.0,
      "target_votes": 213.0,
      "votes_delta": 127.0,
      "votes_change_rate_pct": 147.674419,
      "baseline_vote_share_pct_muni": 4.068117,
      "target_vote_share_pct_muni": 9.26893,
      "vote_share_delta_pct_pt": 5.200813
    },
    {
      "prefecture_code": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "363871",
      "municipality_name": "美波町",
      "municipality_name_en": "Minami-cho",
      "baseline_votes": 145.0,
      "target_votes": 359.0,
      "votes_delta": 214.0,
      "votes_change_rate_pct": 147.586207,
      "baseline_vote_share_pct_muni": 5.18598,
      "target_vote_share_pct_muni": 11.911082,
      "vote_share_delta_pct_pt": 6.725102
    },
    {
      "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": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "363413",
      "municipality_name": "石井町",
      "municipality_name_en": "Ishii-cho",
      "baseline_votes": 555.0,
      "target_votes": 1314.0,
      "votes_delta": 759.0,
      "votes_change_rate_pct": 136.756757,
      "baseline_vote_share_pct_muni": 5.535055,
      "target_vote_share_pct_muni": 11.873136,
      "vote_share_delta_pct_pt": 6.338081
    },
    {
      "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": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "363880",
      "municipality_name": "海陽町",
      "municipality_name_en": "Kaiyo-cho",
      "baseline_votes": 183.0,
      "target_votes": 428.0,
      "votes_delta": 245.0,
      "votes_change_rate_pct": 133.879781,
      "baseline_vote_share_pct_muni": 4.727461,
      "target_vote_share_pct_muni": 9.995329,
      "vote_share_delta_pct_pt": 5.267868
    },
    {
      "prefecture_code": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "362042",
      "municipality_name": "阿南市",
      "municipality_name_en": "Anan-shi",
      "baseline_votes": 1605.0,
      "target_votes": 3751.0,
      "votes_delta": 2146.0,
      "votes_change_rate_pct": 133.707165,
      "baseline_vote_share_pct_muni": 5.547874,
      "target_vote_share_pct_muni": 11.696654,
      "vote_share_delta_pct_pt": 6.14878
    },
    {
      "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": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "362077",
      "municipality_name": "美馬市",
      "municipality_name_en": "Mima-shi",
      "baseline_votes": 475.0,
      "target_votes": 1048.0,
      "votes_delta": 573.0,
      "votes_change_rate_pct": 120.631579,
      "baseline_vote_share_pct_muni": 4.18576,
      "target_vote_share_pct_muni": 8.446164,
      "vote_share_delta_pct_pt": 4.260404
    },
    {
      "prefecture_code": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "363839",
      "municipality_name": "牟岐町",
      "municipality_name_en": "Mugi-cho",
      "baseline_votes": 77.0,
      "target_votes": 169.0,
      "votes_delta": 92.0,
      "votes_change_rate_pct": 119.480519,
      "baseline_vote_share_pct_muni": 4.347826,
      "target_vote_share_pct_muni": 9.285714,
      "vote_share_delta_pct_pt": 4.937888
    },
    {
      "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": "39",
      "prefecture_name": "高知県",
      "prefecture_name_en": "Kochi",
      "jis_code": "393061",
      "municipality_name": "馬路村",
      "municipality_name_en": "Umaji-mura",
      "baseline_votes": 8.0,
      "target_votes": 17.0,
      "votes_delta": 9.0,
      "votes_change_rate_pct": 112.5,
      "baseline_vote_share_pct_muni": 1.709402,
      "target_vote_share_pct_muni": 3.89016,
      "vote_share_delta_pct_pt": 2.180758
    },
    {
      "prefecture_code": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "362034",
      "municipality_name": "小松島市",
      "municipality_name_en": "Komatsushima-shi",
      "baseline_votes": 884.0,
      "target_votes": 1878.0,
      "votes_delta": 994.0,
      "votes_change_rate_pct": 112.443439,
      "baseline_vote_share_pct_muni": 6.060191,
      "target_vote_share_pct_muni": 11.721383,
      "vote_share_delta_pct_pt": 5.661192
    },
    {
      "prefecture_code": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "362050",
      "municipality_name": "吉野川市",
      "municipality_name_en": "Yoshinogawa-shi",
      "baseline_votes": 858.109,
      "target_votes": 1762.0,
      "votes_delta": 903.891,
      "votes_change_rate_pct": 105.33522,
      "baseline_vote_share_pct_muni": 5.523003,
      "target_vote_share_pct_muni": 10.039314,
      "vote_share_delta_pct_pt": 4.516311
    },
    {
      "prefecture_code": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "363685",
      "municipality_name": "那賀町",
      "municipality_name_en": "Naka-cho",
      "baseline_votes": 152.0,
      "target_votes": 312.0,
      "votes_delta": 160.0,
      "votes_change_rate_pct": 105.263158,
      "baseline_vote_share_pct_muni": 4.357798,
      "target_vote_share_pct_muni": 8.23219,
      "vote_share_delta_pct_pt": 3.874392
    },
    {
      "prefecture_code": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "364894",
      "municipality_name": "東みよし町",
      "municipality_name_en": "Higashimiyoshi-cho",
      "baseline_votes": 248.0,
      "target_votes": 509.0,
      "votes_delta": 261.0,
      "votes_change_rate_pct": 105.241935,
      "baseline_vote_share_pct_muni": 4.097142,
      "target_vote_share_pct_muni": 7.752056,
      "vote_share_delta_pct_pt": 3.654914
    },
    {
      "prefecture_code": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "362018",
      "municipality_name": "徳島市",
      "municipality_name_en": "Tokushima-shi",
      "baseline_votes": 6323.0,
      "target_votes": 12726.0,
      "votes_delta": 6403.0,
      "votes_change_rate_pct": 101.265222,
      "baseline_vote_share_pct_muni": 6.392874,
      "target_vote_share_pct_muni": 12.128317,
      "vote_share_delta_pct_pt": 5.735443
    },
    {
      "prefecture_code": "39",
      "prefecture_name": "高知県",
      "prefecture_name_en": "Kochi",
      "jis_code": "394270",
      "municipality_name": "三原村",
      "municipality_name_en": "Mihara-mura",
      "baseline_votes": 19.0,
      "target_votes": 38.0,
      "votes_delta": 19.0,
      "votes_change_rate_pct": 100.0,
      "baseline_vote_share_pct_muni": 2.104097,
      "target_vote_share_pct_muni": 4.408353,
      "vote_share_delta_pct_pt": 2.304256
    },
    {
      "prefecture_code": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "362069",
      "municipality_name": "阿波市",
      "municipality_name_en": "Awa-shi",
      "baseline_votes": 711.0,
      "target_votes": 1421.0,
      "votes_delta": 710.0,
      "votes_change_rate_pct": 99.859353,
      "baseline_vote_share_pct_muni": 5.185617,
      "target_vote_share_pct_muni": 9.268197,
      "vote_share_delta_pct_pt": 4.08258
    },
    {
      "prefecture_code": "39",
      "prefecture_name": "高知県",
      "prefecture_name_en": "Kochi",
      "jis_code": "393029",
      "municipality_name": "奈半利町",
      "municipality_name_en": "Nahari-cho",
      "baseline_votes": 33.0,
      "target_votes": 63.0,
      "votes_delta": 30.0,
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      "baseline_vote_share_pct_muni": 2.614897,
      "target_vote_share_pct_muni": 5.180921,
      "vote_share_delta_pct_pt": 2.566024
    },
    {
      "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": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "364053",
      "municipality_name": "上板町",
      "municipality_name_en": "Kamiita-cho",
      "baseline_votes": 262.0,
      "target_votes": 490.0,
      "votes_delta": 228.0,
      "votes_change_rate_pct": 87.022901,
      "baseline_vote_share_pct_muni": 6.045224,
      "target_vote_share_pct_muni": 10.043042,
      "vote_share_delta_pct_pt": 3.997818
    },
    {
      "prefecture_code": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "364045",
      "municipality_name": "板野町",
      "municipality_name_en": "Itano-cho",
      "baseline_votes": 305.0,
      "target_votes": 566.0,
      "votes_delta": 261.0,
      "votes_change_rate_pct": 85.57377,
      "baseline_vote_share_pct_muni": 6.082968,
      "target_vote_share_pct_muni": 10.137919,
      "vote_share_delta_pct_pt": 4.054951
    },
    {
      "prefecture_code": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "364029",
      "municipality_name": "北島町",
      "municipality_name_en": "Kitajima-cho",
      "baseline_votes": 662.0,
      "target_votes": 1226.0,
      "votes_delta": 564.0,
      "votes_change_rate_pct": 85.196375,
      "baseline_vote_share_pct_muni": 6.793924,
      "target_vote_share_pct_muni": 11.588997,
      "vote_share_delta_pct_pt": 4.795073
    },
    {
      "prefecture_code": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "364010",
      "municipality_name": "松茂町",
      "municipality_name_en": "Matsushige-cho",
      "baseline_votes": 386.0,
      "target_votes": 714.0,
      "votes_delta": 328.0,
      "votes_change_rate_pct": 84.974093,
      "baseline_vote_share_pct_muni": 6.660915,
      "target_vote_share_pct_muni": 11.221122,
      "vote_share_delta_pct_pt": 4.560207
    },
    {
      "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": "36",
      "prefecture_name": "徳島県",
      "prefecture_name_en": "Tokushima",
      "jis_code": "364037",
      "municipality_name": "藍住町",
      "municipality_name_en": "Aizumi-cho",
      "baseline_votes": 931.0,
      "target_votes": 1700.0,
      "votes_delta": 769.0,
      "votes_change_rate_pct": 82.599356,
      "baseline_vote_share_pct_muni": 6.640987,
      "target_vote_share_pct_muni": 11.397157,
      "vote_share_delta_pct_pt": 4.75617
    },
    {
      "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",
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}
