{
  "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": "kanto",
    "region_name": "関東地方",
    "region_name_en": "Kanto Region",
    "party_id": "LDP",
    "party_label": "自民",
    "party_label_en": "Liberal Democratic Party",
    "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": 360,
    "municipality_count": 360,
    "min_votes_change_rate_pct": -7.979561,
    "max_votes_change_rate_pct": 131.818182
  },
  "municipalities": [
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "134210",
      "municipality_name": "小笠原村",
      "municipality_name_en": "Ogasawara-mura",
      "baseline_votes": 198.0,
      "target_votes": 459.0,
      "votes_delta": 261.0,
      "votes_change_rate_pct": 131.818182,
      "baseline_vote_share_pct_muni": 17.172593,
      "target_vote_share_pct_muni": 36.170213,
      "vote_share_delta_pct_pt": 18.99762
    },
    {
      "prefecture_code": "11",
      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "112240",
      "municipality_name": "戸田市",
      "municipality_name_en": "Toda-shi",
      "baseline_votes": 9839.487,
      "target_votes": 19903.0,
      "votes_delta": 10063.513,
      "votes_change_rate_pct": 102.276806,
      "baseline_vote_share_pct_muni": 15.515291,
      "target_vote_share_pct_muni": 33.163376,
      "vote_share_delta_pct_pt": 17.648085
    },
    {
      "prefecture_code": "11",
      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "111090",
      "municipality_name": "さいたま市緑区",
      "municipality_name_en": "Midori-ku",
      "baseline_votes": 10141.407,
      "target_votes": 20400.0,
      "votes_delta": 10258.593,
      "votes_change_rate_pct": 101.15552,
      "baseline_vote_share_pct_muni": 16.440104,
      "target_vote_share_pct_muni": 33.874101,
      "vote_share_delta_pct_pt": 17.433997
    },
    {
      "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": 44747.625,
      "target_votes": 89603.0,
      "votes_delta": 44855.375,
      "votes_change_rate_pct": 100.240795,
      "baseline_vote_share_pct_muni": 16.924343,
      "target_vote_share_pct_muni": 34.346048,
      "vote_share_delta_pct_pt": 17.421705
    },
    {
      "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": 27458.408,
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      "votes_delta": 26229.592,
      "votes_change_rate_pct": 95.52481,
      "baseline_vote_share_pct_muni": 15.820336,
      "target_vote_share_pct_muni": 31.965134,
      "vote_share_delta_pct_pt": 16.144798
    },
    {
      "prefecture_code": "11",
      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "112348",
      "municipality_name": "八潮市",
      "municipality_name_en": "Yashio-shi",
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      "target_votes": 12649.0,
      "votes_delta": 6156.0,
      "votes_change_rate_pct": 94.809795,
      "baseline_vote_share_pct_muni": 16.094889,
      "target_vote_share_pct_muni": 34.874552,
      "vote_share_delta_pct_pt": 18.779663
    },
    {
      "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",
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      "votes_change_rate_pct": 93.489849,
      "baseline_vote_share_pct_muni": 18.790559,
      "target_vote_share_pct_muni": 36.348528,
      "vote_share_delta_pct_pt": 17.557969
    },
    {
      "prefecture_code": "12",
      "prefecture_name": "千葉県",
      "prefecture_name_en": "Chiba",
      "jis_code": "122270",
      "municipality_name": "浦安市",
      "municipality_name_en": "Urayasu-shi",
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      "votes_change_rate_pct": 93.168536,
      "baseline_vote_share_pct_muni": 18.368744,
      "target_vote_share_pct_muni": 36.492766,
      "vote_share_delta_pct_pt": 18.124022
    },
    {
      "prefecture_code": "11",
      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "111058",
      "municipality_name": "さいたま市中央区",
      "municipality_name_en": "Chuo-ku",
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      "votes_delta": 8597.001,
      "votes_change_rate_pct": 92.760055,
      "baseline_vote_share_pct_muni": 17.84229,
      "target_vote_share_pct_muni": 34.749373,
      "vote_share_delta_pct_pt": 16.907083
    },
    {
      "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",
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      "votes_change_rate_pct": 92.461738,
      "baseline_vote_share_pct_muni": 16.427119,
      "target_vote_share_pct_muni": 32.335204,
      "vote_share_delta_pct_pt": 15.908085
    },
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      "prefecture_code": "11",
      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "111015",
      "municipality_name": "さいたま市西区",
      "municipality_name_en": "Nishi-ku",
      "baseline_votes": 7469.836,
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      "votes_change_rate_pct": 90.968048,
      "baseline_vote_share_pct_muni": 17.511806,
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      "vote_share_delta_pct_pt": 17.180186
    },
    {
      "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": 23592.69,
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      "votes_change_rate_pct": 90.296232,
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      "target_vote_share_pct_muni": 36.942319,
      "vote_share_delta_pct_pt": 17.189068
    },
    {
      "prefecture_code": "12",
      "prefecture_name": "千葉県",
      "prefecture_name_en": "Chiba",
      "jis_code": "122076",
      "municipality_name": "松戸市",
      "municipality_name_en": "Matsudo-shi",
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      "vote_share_delta_pct_pt": 16.203209
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      "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",
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      "vote_share_delta_pct_pt": 16.43053
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      "prefecture_code": "11",
      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "113417",
      "municipality_name": "滑川町",
      "municipality_name_en": "Namegawa-machi",
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      "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",
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      "prefecture_name_en": "Tokyo",
      "jis_code": "131105",
      "municipality_name": "目黒区",
      "municipality_name_en": "Meguro-ku",
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      "prefecture_code": "13",
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      "jis_code": "132233",
      "municipality_name": "武蔵村山市",
      "municipality_name_en": "Musashimurayama-shi",
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      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082350",
      "municipality_name": "つくばみらい市",
      "municipality_name_en": "Tsukubamirai-shi",
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      "jis_code": "085464",
      "municipality_name": "境町",
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      "prefecture_name_en": "Ibaraki",
      "jis_code": "082040",
      "municipality_name": "古河市",
      "municipality_name_en": "Koga-shi",
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      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "111031",
      "municipality_name": "さいたま市大宮区",
      "municipality_name_en": "Omiya-ku",
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      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092134",
      "municipality_name": "那須塩原市",
      "municipality_name_en": "Nasushiobara-shi",
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      "municipality_name": "坂東市",
      "municipality_name_en": "Bando-shi",
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      "prefecture_name": "東京都",
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      "municipality_name": "さいたま市北区",
      "municipality_name_en": "Kita-ku",
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      "jis_code": "112275",
      "municipality_name": "朝霞市",
      "municipality_name_en": "Asaka-shi",
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      "prefecture_code": "08",
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      "prefecture_name_en": "Ibaraki",
      "jis_code": "082325",
      "municipality_name": "神栖市",
      "municipality_name_en": "Kamisu-shi",
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      "prefecture_code": "12",
      "prefecture_name": "千葉県",
      "prefecture_name_en": "Chiba",
      "jis_code": "122246",
      "municipality_name": "鎌ケ谷市",
      "municipality_name_en": "Kamagaya-shi",
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      "prefecture_name_en": "Ibaraki",
      "jis_code": "082201",
      "municipality_name": "つくば市",
      "municipality_name_en": "Tsukuba-shi",
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      "votes_change_rate_pct": 83.027726,
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      "prefecture_code": "11",
      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "111074",
      "municipality_name": "さいたま市浦和区",
      "municipality_name_en": "Urawa-ku",
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      "votes_change_rate_pct": 82.87998,
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      "vote_share_delta_pct_pt": 15.262616
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "132128",
      "municipality_name": "日野市",
      "municipality_name_en": "Hino-shi",
      "baseline_votes": 17106.799,
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      "votes_delta": 14144.201,
      "votes_change_rate_pct": 82.681751,
      "baseline_vote_share_pct_muni": 17.903318,
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      "vote_share_delta_pct_pt": 15.544179
    },
    {
      "prefecture_code": "11",
      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "111007",
      "municipality_name": "さいたま市",
      "municipality_name_en": "Saitama-shi",
      "baseline_votes": 114408.151,
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      "votes_delta": 94587.849,
      "votes_change_rate_pct": 82.675796,
      "baseline_vote_share_pct_muni": 17.87309,
      "target_vote_share_pct_muni": 33.766053,
      "vote_share_delta_pct_pt": 15.892963
    },
    {
      "prefecture_code": "12",
      "prefecture_name": "千葉県",
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  ]
}
