{
  "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": "09",
    "prefecture_name": "栃木県",
    "prefecture_name_en": "Tochigi",
    "party_id": "JCP",
    "party_label": "共産",
    "party_label_en": "Japanese Communist Party",
    "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": 25,
    "municipality_count": 25,
    "min_votes_change_rate_pct": -29.971989,
    "max_votes_change_rate_pct": 13.80597
  },
  "municipalities": [
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "094110",
      "municipality_name": "那珂川町",
      "municipality_name_en": "Nakagawa-machi",
      "baseline_votes": 268.0,
      "target_votes": 305.0,
      "votes_delta": 37.0,
      "votes_change_rate_pct": 13.80597,
      "baseline_vote_share_pct_muni": 4.058147,
      "target_vote_share_pct_muni": 4.08902,
      "vote_share_delta_pct_pt": 0.030873
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092045",
      "municipality_name": "佐野市",
      "municipality_name_en": "Sano-shi",
      "baseline_votes": 1774.0,
      "target_votes": 1875.0,
      "votes_delta": 101.0,
      "votes_change_rate_pct": 5.693348,
      "baseline_vote_share_pct_muni": 3.750846,
      "target_vote_share_pct_muni": 4.016107,
      "vote_share_delta_pct_pt": 0.265261
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092029",
      "municipality_name": "足利市",
      "municipality_name_en": "Ashikaga-shi",
      "baseline_votes": 1983.259,
      "target_votes": 1986.0,
      "votes_delta": 2.741,
      "votes_change_rate_pct": 0.138207,
      "baseline_vote_share_pct_muni": 3.526797,
      "target_vote_share_pct_muni": 3.545099,
      "vote_share_delta_pct_pt": 0.018302
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092100",
      "municipality_name": "大田原市",
      "municipality_name_en": "Ohtawara-shi",
      "baseline_votes": 678.039,
      "target_votes": 651.0,
      "votes_delta": -27.039,
      "votes_change_rate_pct": -3.987824,
      "baseline_vote_share_pct_muni": 2.347049,
      "target_vote_share_pct_muni": 2.04614,
      "vote_share_delta_pct_pt": -0.300909
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092150",
      "municipality_name": "那須烏山市",
      "municipality_name_en": "Nasukarasuyama-shi",
      "baseline_votes": 381.0,
      "target_votes": 362.0,
      "votes_delta": -19.0,
      "votes_change_rate_pct": -4.986877,
      "baseline_vote_share_pct_muni": 3.440491,
      "target_vote_share_pct_muni": 2.961387,
      "vote_share_delta_pct_pt": -0.479104
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "093840",
      "municipality_name": "塩谷町",
      "municipality_name_en": "Shioya-machi",
      "baseline_votes": 195.0,
      "target_votes": 185.0,
      "votes_delta": -10.0,
      "votes_change_rate_pct": -5.128205,
      "baseline_vote_share_pct_muni": 4.473503,
      "target_vote_share_pct_muni": 4.121185,
      "vote_share_delta_pct_pt": -0.352318
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "094072",
      "municipality_name": "那須町",
      "municipality_name_en": "Nasu-machi",
      "baseline_votes": 560.08,
      "target_votes": 529.0,
      "votes_delta": -31.08,
      "votes_change_rate_pct": -5.549207,
      "baseline_vote_share_pct_muni": 4.953392,
      "target_vote_share_pct_muni": 4.280282,
      "vote_share_delta_pct_pt": -0.67311
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092037",
      "municipality_name": "栃木市",
      "municipality_name_en": "Tochigi-shi",
      "baseline_votes": 2127.15,
      "target_votes": 2006.0,
      "votes_delta": -121.15,
      "votes_change_rate_pct": -5.695414,
      "baseline_vote_share_pct_muni": 3.221637,
      "target_vote_share_pct_muni": 3.195947,
      "vote_share_delta_pct_pt": -0.02569
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092118",
      "municipality_name": "矢板市",
      "municipality_name_en": "Yaita-shi",
      "baseline_votes": 361.022,
      "target_votes": 339.0,
      "votes_delta": -22.022,
      "votes_change_rate_pct": -6.099905,
      "baseline_vote_share_pct_muni": 2.650092,
      "target_vote_share_pct_muni": 2.326539,
      "vote_share_delta_pct_pt": -0.323553
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "093424",
      "municipality_name": "益子町",
      "municipality_name_en": "Mashiko-machi",
      "baseline_votes": 371.0,
      "target_votes": 342.0,
      "votes_delta": -29.0,
      "votes_change_rate_pct": -7.816712,
      "baseline_vote_share_pct_muni": 3.636185,
      "target_vote_share_pct_muni": 3.271788,
      "vote_share_delta_pct_pt": -0.364397
    },
    {
      "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",
      "baseline_votes": 1597.218,
      "target_votes": 1427.0,
      "votes_delta": -170.218,
      "votes_change_rate_pct": -10.657155,
      "baseline_vote_share_pct_muni": 3.325875,
      "target_vote_share_pct_muni": 2.734659,
      "vote_share_delta_pct_pt": -0.591216
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "093432",
      "municipality_name": "茂木町",
      "municipality_name_en": "Motegi-machi",
      "baseline_votes": 175.0,
      "target_votes": 155.0,
      "votes_delta": -20.0,
      "votes_change_rate_pct": -11.428571,
      "baseline_vote_share_pct_muni": 2.951594,
      "target_vote_share_pct_muni": 2.605042,
      "vote_share_delta_pct_pt": -0.346552
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "093440",
      "municipality_name": "市貝町",
      "municipality_name_en": "Ichikai-machi",
      "baseline_votes": 139.0,
      "target_votes": 120.0,
      "votes_delta": -19.0,
      "votes_change_rate_pct": -13.669065,
      "baseline_vote_share_pct_muni": 2.62909,
      "target_vote_share_pct_muni": 2.240478,
      "vote_share_delta_pct_pt": -0.388612
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092169",
      "municipality_name": "下野市",
      "municipality_name_en": "Shimotsuke-shi",
      "baseline_votes": 731.015,
      "target_votes": 622.0,
      "votes_delta": -109.015,
      "votes_change_rate_pct": -14.912827,
      "baseline_vote_share_pct_muni": 2.663272,
      "target_vote_share_pct_muni": 2.34222,
      "vote_share_delta_pct_pt": -0.321052
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "093017",
      "municipality_name": "上三川町",
      "municipality_name_en": "Kaminokawa-machi",
      "baseline_votes": 304.0,
      "target_votes": 257.0,
      "votes_delta": -47.0,
      "votes_change_rate_pct": -15.460526,
      "baseline_vote_share_pct_muni": 2.210748,
      "target_vote_share_pct_muni": 2.044388,
      "vote_share_delta_pct_pt": -0.16636
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "093645",
      "municipality_name": "野木町",
      "municipality_name_en": "Nogi-machi",
      "baseline_votes": 420.0,
      "target_votes": 349.0,
      "votes_delta": -71.0,
      "votes_change_rate_pct": -16.904762,
      "baseline_vote_share_pct_muni": 3.616637,
      "target_vote_share_pct_muni": 3.084129,
      "vote_share_delta_pct_pt": -0.532508
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "093610",
      "municipality_name": "壬生町",
      "municipality_name_en": "Mibu-machi",
      "baseline_votes": 530.0,
      "target_votes": 426.0,
      "votes_delta": -104.0,
      "votes_change_rate_pct": -19.622642,
      "baseline_vote_share_pct_muni": 3.130722,
      "target_vote_share_pct_muni": 2.570756,
      "vote_share_delta_pct_pt": -0.559966
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "093459",
      "municipality_name": "芳賀町",
      "municipality_name_en": "Haga-machi",
      "baseline_votes": 167.0,
      "target_votes": 134.0,
      "votes_delta": -33.0,
      "votes_change_rate_pct": -19.760479,
      "baseline_vote_share_pct_muni": 2.264407,
      "target_vote_share_pct_muni": 1.822138,
      "vote_share_delta_pct_pt": -0.442269
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092061",
      "municipality_name": "日光市",
      "municipality_name_en": "Nikko-shi",
      "baseline_votes": 1300.042,
      "target_votes": 1035.0,
      "votes_delta": -265.042,
      "votes_change_rate_pct": -20.387187,
      "baseline_vote_share_pct_muni": 3.94502,
      "target_vote_share_pct_muni": 3.073679,
      "vote_share_delta_pct_pt": -0.871341
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092088",
      "municipality_name": "小山市",
      "municipality_name_en": "Oyama-shi",
      "baseline_votes": 2002.0,
      "target_votes": 1592.0,
      "votes_delta": -410.0,
      "votes_change_rate_pct": -20.47952,
      "baseline_vote_share_pct_muni": 2.811837,
      "target_vote_share_pct_muni": 2.269358,
      "vote_share_delta_pct_pt": -0.542479
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092053",
      "municipality_name": "鹿沼市",
      "municipality_name_en": "Kanuma-shi",
      "baseline_votes": 1065.046,
      "target_votes": 846.0,
      "votes_delta": -219.046,
      "votes_change_rate_pct": -20.566811,
      "baseline_vote_share_pct_muni": 2.639388,
      "target_vote_share_pct_muni": 2.146228,
      "vote_share_delta_pct_pt": -0.49316
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092010",
      "municipality_name": "宇都宮市",
      "municipality_name_en": "Utsunomiya-shi",
      "baseline_votes": 6722.355,
      "target_votes": 5280.0,
      "votes_delta": -1442.355,
      "votes_change_rate_pct": -21.456097,
      "baseline_vote_share_pct_muni": 2.958952,
      "target_vote_share_pct_muni": 2.651468,
      "vote_share_delta_pct_pt": -0.307484
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092096",
      "municipality_name": "真岡市",
      "municipality_name_en": "Moka-shi",
      "baseline_votes": 837.0,
      "target_votes": 635.0,
      "votes_delta": -202.0,
      "votes_change_rate_pct": -24.133811,
      "baseline_vote_share_pct_muni": 2.632075,
      "target_vote_share_pct_muni": 1.901255,
      "vote_share_delta_pct_pt": -0.73082
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092142",
      "municipality_name": "さくら市",
      "municipality_name_en": "Sakura-shi",
      "baseline_votes": 477.0,
      "target_votes": 360.0,
      "votes_delta": -117.0,
      "votes_change_rate_pct": -24.528302,
      "baseline_vote_share_pct_muni": 2.53953,
      "target_vote_share_pct_muni": 1.919283,
      "vote_share_delta_pct_pt": -0.620247
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "093866",
      "municipality_name": "高根沢町",
      "municipality_name_en": "Takanezawa-machi",
      "baseline_votes": 357.0,
      "target_votes": 250.0,
      "votes_delta": -107.0,
      "votes_change_rate_pct": -29.971989,
      "baseline_vote_share_pct_muni": 2.505263,
      "target_vote_share_pct_muni": 1.933638,
      "vote_share_delta_pct_pt": -0.571625
    }
  ]
}