{
  "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": "42",
    "prefecture_name": "長崎県",
    "prefecture_name_en": "Nagasaki",
    "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": 21,
    "municipality_count": 21,
    "min_votes_change_rate_pct": -99.861538,
    "max_votes_change_rate_pct": 129.319372
  },
  "municipalities": [
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "424110",
      "municipality_name": "新上五島町",
      "municipality_name_en": "Shinkamigoto-cho",
      "baseline_votes": 191.0,
      "target_votes": 438.0,
      "votes_delta": 247.0,
      "votes_change_rate_pct": 129.319372,
      "baseline_vote_share_pct_muni": 2.173913,
      "target_vote_share_pct_muni": 17.183209,
      "vote_share_delta_pct_pt": 15.009296
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422070",
      "municipality_name": "平戸市",
      "municipality_name_en": "Hirado-shi",
      "baseline_votes": 313.0,
      "target_votes": 670.0,
      "votes_delta": 357.0,
      "votes_change_rate_pct": 114.057508,
      "baseline_vote_share_pct_muni": 2.375351,
      "target_vote_share_pct_muni": 14.258353,
      "vote_share_delta_pct_pt": 11.883002
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "423831",
      "municipality_name": "小値賀町",
      "municipality_name_en": "Ojika-cho",
      "baseline_votes": 39.0,
      "target_votes": 79.0,
      "votes_delta": 40.0,
      "votes_change_rate_pct": 102.564103,
      "baseline_vote_share_pct_muni": 2.895323,
      "target_vote_share_pct_muni": 5.634807,
      "vote_share_delta_pct_pt": 2.739484
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422134",
      "municipality_name": "雲仙市",
      "municipality_name_en": "Unzen-shi",
      "baseline_votes": 472.0,
      "target_votes": 907.0,
      "votes_delta": 435.0,
      "votes_change_rate_pct": 92.161017,
      "baseline_vote_share_pct_muni": 2.729112,
      "target_vote_share_pct_muni": 27.434967,
      "vote_share_delta_pct_pt": 24.705855
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422126",
      "municipality_name": "西海市",
      "municipality_name_en": "Saikai-shi",
      "baseline_votes": 306.0,
      "target_votes": 570.0,
      "votes_delta": 264.0,
      "votes_change_rate_pct": 86.27451,
      "baseline_vote_share_pct_muni": 2.656481,
      "target_vote_share_pct_muni": 18.89294,
      "vote_share_delta_pct_pt": 16.236459
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422096",
      "municipality_name": "対馬市",
      "municipality_name_en": "Tsushima-shi",
      "baseline_votes": 279.0,
      "target_votes": 496.0,
      "votes_delta": 217.0,
      "votes_change_rate_pct": 77.777778,
      "baseline_vote_share_pct_muni": 2.098375,
      "target_vote_share_pct_muni": 12.8,
      "vote_share_delta_pct_pt": 10.701625
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422088",
      "municipality_name": "松浦市",
      "municipality_name_en": "Matsuura-shi",
      "baseline_votes": 271.035,
      "target_votes": 477.0,
      "votes_delta": 205.965,
      "votes_change_rate_pct": 75.992031,
      "baseline_vote_share_pct_muni": 2.908101,
      "target_vote_share_pct_muni": 15.487013,
      "vote_share_delta_pct_pt": 12.578912
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "423084",
      "municipality_name": "時津町",
      "municipality_name_en": "Togitsu-cho",
      "baseline_votes": 464.0,
      "target_votes": 815.0,
      "votes_delta": 351.0,
      "votes_change_rate_pct": 75.646552,
      "baseline_vote_share_pct_muni": 3.611738,
      "target_vote_share_pct_muni": 22.784456,
      "vote_share_delta_pct_pt": 19.172718
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "423211",
      "municipality_name": "東彼杵町",
      "municipality_name_en": "Higashisonogi-cho",
      "baseline_votes": 112.0,
      "target_votes": 192.0,
      "votes_delta": 80.0,
      "votes_change_rate_pct": 71.428571,
      "baseline_vote_share_pct_muni": 3.157598,
      "target_vote_share_pct_muni": 9.425626,
      "vote_share_delta_pct_pt": 6.268028
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422037",
      "municipality_name": "島原市",
      "municipality_name_en": "Shimabara-shi",
      "baseline_votes": 542.0,
      "target_votes": 916.0,
      "votes_delta": 374.0,
      "votes_change_rate_pct": 69.00369,
      "baseline_vote_share_pct_muni": 3.047169,
      "target_vote_share_pct_muni": 25.430316,
      "vote_share_delta_pct_pt": 22.383147
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "423238",
      "municipality_name": "波佐見町",
      "municipality_name_en": "Hasami-cho",
      "baseline_votes": 246.0,
      "target_votes": 381.0,
      "votes_delta": 135.0,
      "votes_change_rate_pct": 54.878049,
      "baseline_vote_share_pct_muni": 3.737466,
      "target_vote_share_pct_muni": 14.738878,
      "vote_share_delta_pct_pt": 11.001412
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422100",
      "municipality_name": "壱岐市",
      "municipality_name_en": "Iki-shi",
      "baseline_votes": 321.0,
      "target_votes": 478.0,
      "votes_delta": 157.0,
      "votes_change_rate_pct": 48.909657,
      "baseline_vote_share_pct_muni": 2.381482,
      "target_vote_share_pct_muni": 12.791009,
      "vote_share_delta_pct_pt": 10.409527
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "423912",
      "municipality_name": "佐々町",
      "municipality_name_en": "Saza-cho",
      "baseline_votes": 249.0,
      "target_votes": 356.0,
      "votes_delta": 107.0,
      "votes_change_rate_pct": 42.971888,
      "baseline_vote_share_pct_muni": 4.222486,
      "target_vote_share_pct_muni": 10.906863,
      "vote_share_delta_pct_pt": 6.684377
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "423220",
      "municipality_name": "川棚町",
      "municipality_name_en": "Kawatana-cho",
      "baseline_votes": 298.0,
      "target_votes": 386.0,
      "votes_delta": 88.0,
      "votes_change_rate_pct": 29.530201,
      "baseline_vote_share_pct_muni": 5.056847,
      "target_vote_share_pct_muni": 17.232143,
      "vote_share_delta_pct_pt": 12.175296
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422118",
      "municipality_name": "五島市",
      "municipality_name_en": "Goto-shi",
      "baseline_votes": 436.0,
      "target_votes": 1.107,
      "votes_delta": -434.893,
      "votes_change_rate_pct": -99.746101,
      "baseline_vote_share_pct_muni": 2.764393,
      "target_vote_share_pct_muni": 0.047207,
      "vote_share_delta_pct_pt": -2.717186
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422142",
      "municipality_name": "南島原市",
      "municipality_name_en": "Minamishimabara-shi",
      "baseline_votes": 479.0,
      "target_votes": 1.029,
      "votes_delta": -477.971,
      "votes_change_rate_pct": -99.785177,
      "baseline_vote_share_pct_muni": 2.694038,
      "target_vote_share_pct_muni": 0.036948,
      "vote_share_delta_pct_pt": -2.65709
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422045",
      "municipality_name": "諫早市",
      "municipality_name_en": "Isahaya-shi",
      "baseline_votes": 2129.0,
      "target_votes": 3.757,
      "votes_delta": -2125.243,
      "votes_change_rate_pct": -99.823532,
      "baseline_vote_share_pct_muni": 3.578091,
      "target_vote_share_pct_muni": 0.360557,
      "vote_share_delta_pct_pt": -3.217534
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422010",
      "municipality_name": "長崎市",
      "municipality_name_en": "Nagasaki-shi",
      "baseline_votes": 6749.0,
      "target_votes": 11.705,
      "votes_delta": -6737.295,
      "votes_change_rate_pct": -99.826567,
      "baseline_vote_share_pct_muni": 3.770265,
      "target_vote_share_pct_muni": 6.466851,
      "vote_share_delta_pct_pt": 2.696586
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422053",
      "municipality_name": "大村市",
      "municipality_name_en": "Omura-shi",
      "baseline_votes": 1762.0,
      "target_votes": 2.689,
      "votes_delta": -1759.311,
      "votes_change_rate_pct": -99.847389,
      "baseline_vote_share_pct_muni": 4.027981,
      "target_vote_share_pct_muni": 0.115805,
      "vote_share_delta_pct_pt": -3.912176
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422029",
      "municipality_name": "佐世保市",
      "municipality_name_en": "Sasebo-shi",
      "baseline_votes": 4154.0,
      "target_votes": 6.12,
      "votes_delta": -4147.88,
      "votes_change_rate_pct": -99.852672,
      "baseline_vote_share_pct_muni": 4.111162,
      "target_vote_share_pct_muni": 6.12,
      "vote_share_delta_pct_pt": 2.008838
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "423076",
      "municipality_name": "長与町",
      "municipality_name_en": "Nagayo-cho",
      "baseline_votes": 832.0,
      "target_votes": 1.152,
      "votes_delta": -830.848,
      "votes_change_rate_pct": -99.861538,
      "baseline_vote_share_pct_muni": 4.3295,
      "target_vote_share_pct_muni": 0.057831,
      "vote_share_delta_pct_pt": -4.271669
    }
  ]
}