{
  "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": "SDP",
    "party_label": "社民",
    "party_label_en": "Social Democratic 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": 21,
    "municipality_count": 21,
    "min_votes_change_rate_pct": -99.927686,
    "max_votes_change_rate_pct": 17.99062
  },
  "municipalities": [
    {
      "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": 237.307,
      "target_votes": 280.0,
      "votes_delta": 42.693,
      "votes_change_rate_pct": 17.99062,
      "baseline_vote_share_pct_muni": 1.800918,
      "target_vote_share_pct_muni": 5.958715,
      "vote_share_delta_pct_pt": 4.157797
    },
    {
      "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": 128.0,
      "target_votes": 137.0,
      "votes_delta": 9.0,
      "votes_change_rate_pct": 7.03125,
      "baseline_vote_share_pct_muni": 1.456863,
      "target_vote_share_pct_muni": 5.374657,
      "vote_share_delta_pct_pt": 3.917794
    },
    {
      "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": 219.0,
      "target_votes": 233.0,
      "votes_delta": 14.0,
      "votes_change_rate_pct": 6.392694,
      "baseline_vote_share_pct_muni": 1.901207,
      "target_vote_share_pct_muni": 7.722904,
      "vote_share_delta_pct_pt": 5.821697
    },
    {
      "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": 109.0,
      "target_votes": 108.0,
      "votes_delta": -1.0,
      "votes_change_rate_pct": -0.917431,
      "baseline_vote_share_pct_muni": 1.656032,
      "target_vote_share_pct_muni": 4.17795,
      "vote_share_delta_pct_pt": 2.521918
    },
    {
      "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": 124.0,
      "target_votes": 121.0,
      "votes_delta": -3.0,
      "votes_change_rate_pct": -2.419355,
      "baseline_vote_share_pct_muni": 2.104191,
      "target_vote_share_pct_muni": 5.401786,
      "vote_share_delta_pct_pt": 3.297595
    },
    {
      "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": 316.388,
      "target_votes": 303.0,
      "votes_delta": -13.388,
      "votes_change_rate_pct": -4.231513,
      "baseline_vote_share_pct_muni": 1.77946,
      "target_vote_share_pct_muni": 10.879713,
      "vote_share_delta_pct_pt": 9.100253
    },
    {
      "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": 232.0,
      "target_votes": 220.0,
      "votes_delta": -12.0,
      "votes_change_rate_pct": -5.172414,
      "baseline_vote_share_pct_muni": 1.470961,
      "target_vote_share_pct_muni": 9.381663,
      "vote_share_delta_pct_pt": 7.910702
    },
    {
      "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": 158.0,
      "target_votes": 149.0,
      "votes_delta": -9.0,
      "votes_change_rate_pct": -5.696203,
      "baseline_vote_share_pct_muni": 1.188327,
      "target_vote_share_pct_muni": 3.845161,
      "vote_share_delta_pct_pt": 2.656834
    },
    {
      "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": 69.0,
      "target_votes": 63.0,
      "votes_delta": -6.0,
      "votes_change_rate_pct": -8.695652,
      "baseline_vote_share_pct_muni": 1.945306,
      "target_vote_share_pct_muni": 3.092784,
      "vote_share_delta_pct_pt": 1.147478
    },
    {
      "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": 298.687,
      "target_votes": 272.0,
      "votes_delta": -26.687,
      "votes_change_rate_pct": -8.934771,
      "baseline_vote_share_pct_muni": 1.727014,
      "target_vote_share_pct_muni": 8.227465,
      "vote_share_delta_pct_pt": 6.500451
    },
    {
      "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": 350.0,
      "target_votes": 317.0,
      "votes_delta": -33.0,
      "votes_change_rate_pct": -9.428571,
      "baseline_vote_share_pct_muni": 1.967729,
      "target_vote_share_pct_muni": 8.800666,
      "vote_share_delta_pct_pt": 6.832937
    },
    {
      "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": 156.964,
      "target_votes": 137.0,
      "votes_delta": -19.964,
      "votes_change_rate_pct": -12.71884,
      "baseline_vote_share_pct_muni": 1.684163,
      "target_vote_share_pct_muni": 4.448052,
      "vote_share_delta_pct_pt": 2.763889
    },
    {
      "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": 118.0,
      "target_votes": 92.0,
      "votes_delta": -26.0,
      "votes_change_rate_pct": -22.033898,
      "baseline_vote_share_pct_muni": 2.001017,
      "target_vote_share_pct_muni": 2.818627,
      "vote_share_delta_pct_pt": 0.81761
    },
    {
      "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": 499.0,
      "target_votes": 383.0,
      "votes_delta": -116.0,
      "votes_change_rate_pct": -23.246493,
      "baseline_vote_share_pct_muni": 2.596659,
      "target_vote_share_pct_muni": 19.226908,
      "vote_share_delta_pct_pt": 16.630249
    },
    {
      "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": 791.0,
      "target_votes": 606.0,
      "votes_delta": -185.0,
      "votes_change_rate_pct": -23.388116,
      "baseline_vote_share_pct_muni": 1.808248,
      "target_vote_share_pct_muni": 26.098191,
      "vote_share_delta_pct_pt": 24.289943
    },
    {
      "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": 219.0,
      "target_votes": 156.0,
      "votes_delta": -63.0,
      "votes_change_rate_pct": -28.767123,
      "baseline_vote_share_pct_muni": 1.62475,
      "target_vote_share_pct_muni": 4.174472,
      "vote_share_delta_pct_pt": 2.549722
    },
    {
      "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": 242.0,
      "target_votes": 164.0,
      "votes_delta": -78.0,
      "votes_change_rate_pct": -32.231405,
      "baseline_vote_share_pct_muni": 1.883708,
      "target_vote_share_pct_muni": 4.584848,
      "vote_share_delta_pct_pt": 2.70114
    },
    {
      "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": 27.0,
      "target_votes": 13.0,
      "votes_delta": -14.0,
      "votes_change_rate_pct": -51.851852,
      "baseline_vote_share_pct_muni": 2.004454,
      "target_vote_share_pct_muni": 0.927247,
      "vote_share_delta_pct_pt": -1.077207
    },
    {
      "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": 2651.39,
      "target_votes": 2.246,
      "votes_delta": -2649.144,
      "votes_change_rate_pct": -99.91529,
      "baseline_vote_share_pct_muni": 2.624047,
      "target_vote_share_pct_muni": 2.246,
      "vote_share_delta_pct_pt": -0.378047
    },
    {
      "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": 1366.0,
      "target_votes": 1.005,
      "votes_delta": -1364.995,
      "votes_change_rate_pct": -99.926428,
      "baseline_vote_share_pct_muni": 2.29576,
      "target_vote_share_pct_muni": 0.096449,
      "vote_share_delta_pct_pt": -2.199311
    },
    {
      "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": 4338.0,
      "target_votes": 3.137,
      "votes_delta": -4334.863,
      "votes_change_rate_pct": -99.927686,
      "baseline_vote_share_pct_muni": 2.423382,
      "target_vote_share_pct_muni": 1.733149,
      "vote_share_delta_pct_pt": -0.690233
    }
  ]
}