{
  "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": "DPP",
    "party_label": "国民",
    "party_label_en": "Democratic Party for the People",
    "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": -43.258589,
    "max_votes_change_rate_pct": 15.599394
  },
  "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": 490.487,
      "target_votes": 567.0,
      "votes_delta": 76.513,
      "votes_change_rate_pct": 15.599394,
      "baseline_vote_share_pct_muni": 7.42712,
      "target_vote_share_pct_muni": 7.601555,
      "vote_share_delta_pct_pt": 0.174435
    },
    {
      "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": 899.285,
      "target_votes": 1038.0,
      "votes_delta": 138.715,
      "votes_change_rate_pct": 15.425032,
      "baseline_vote_share_pct_muni": 8.120688,
      "target_vote_share_pct_muni": 8.491492,
      "vote_share_delta_pct_pt": 0.370804
    },
    {
      "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": 913.742,
      "target_votes": 954.0,
      "votes_delta": 40.258,
      "votes_change_rate_pct": 4.405839,
      "baseline_vote_share_pct_muni": 8.081206,
      "target_vote_share_pct_muni": 7.719071,
      "vote_share_delta_pct_pt": -0.362135
    },
    {
      "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": 5759.142,
      "target_votes": 5695.0,
      "votes_delta": -64.142,
      "votes_change_rate_pct": -1.113742,
      "baseline_vote_share_pct_muni": 10.241388,
      "target_vote_share_pct_muni": 10.165831,
      "vote_share_delta_pct_pt": -0.075557
    },
    {
      "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": 3021.533,
      "target_votes": 2844.0,
      "votes_delta": -177.533,
      "votes_change_rate_pct": -5.875594,
      "baseline_vote_share_pct_muni": 10.459112,
      "target_vote_share_pct_muni": 8.938899,
      "vote_share_delta_pct_pt": -1.520213
    },
    {
      "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": 1343.02,
      "target_votes": 1261.0,
      "votes_delta": -82.02,
      "votes_change_rate_pct": -6.107132,
      "baseline_vote_share_pct_muni": 9.858475,
      "target_vote_share_pct_muni": 8.654176,
      "vote_share_delta_pct_pt": -1.204299
    },
    {
      "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": 429.268,
      "target_votes": 398.0,
      "votes_delta": -31.268,
      "votes_change_rate_pct": -7.284028,
      "baseline_vote_share_pct_muni": 7.240142,
      "target_vote_share_pct_muni": 6.689076,
      "vote_share_delta_pct_pt": -0.551066
    },
    {
      "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": 5156.71,
      "target_votes": 4655.0,
      "votes_delta": -501.71,
      "votes_change_rate_pct": -9.729265,
      "baseline_vote_share_pct_muni": 10.903057,
      "target_vote_share_pct_muni": 9.970656,
      "vote_share_delta_pct_pt": -0.932401
    },
    {
      "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": 7564.644,
      "target_votes": 6686.0,
      "votes_delta": -878.644,
      "votes_change_rate_pct": -11.61514,
      "baseline_vote_share_pct_muni": 11.456895,
      "target_vote_share_pct_muni": 10.652094,
      "vote_share_delta_pct_pt": -0.804801
    },
    {
      "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": 5497.351,
      "target_votes": 4801.0,
      "votes_delta": -696.351,
      "votes_change_rate_pct": -12.667028,
      "baseline_vote_share_pct_muni": 11.447091,
      "target_vote_share_pct_muni": 9.200491,
      "vote_share_delta_pct_pt": -2.2466
    },
    {
      "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": 3156.785,
      "target_votes": 2619.0,
      "votes_delta": -537.785,
      "votes_change_rate_pct": -17.035845,
      "baseline_vote_share_pct_muni": 9.579368,
      "target_vote_share_pct_muni": 7.777745,
      "vote_share_delta_pct_pt": -1.801623
    },
    {
      "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": 4089.182,
      "target_votes": 3245.0,
      "votes_delta": -844.182,
      "votes_change_rate_pct": -20.644276,
      "baseline_vote_share_pct_muni": 10.133778,
      "target_vote_share_pct_muni": 8.23228,
      "vote_share_delta_pct_pt": -1.901498
    },
    {
      "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": 830.446,
      "target_votes": 638.0,
      "votes_delta": -192.446,
      "votes_change_rate_pct": -23.173813,
      "baseline_vote_share_pct_muni": 11.260285,
      "target_vote_share_pct_muni": 8.675551,
      "vote_share_delta_pct_pt": -2.584734
    },
    {
      "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": 1085.962,
      "target_votes": 827.0,
      "votes_delta": -258.962,
      "votes_change_rate_pct": -23.846322,
      "baseline_vote_share_pct_muni": 10.643556,
      "target_vote_share_pct_muni": 7.911604,
      "vote_share_delta_pct_pt": -2.731952
    },
    {
      "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": 593.838,
      "target_votes": 449.0,
      "votes_delta": -144.838,
      "votes_change_rate_pct": -24.390154,
      "baseline_vote_share_pct_muni": 11.232041,
      "target_vote_share_pct_muni": 8.383122,
      "vote_share_delta_pct_pt": -2.848919
    },
    {
      "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": 374.49,
      "target_votes": 283.0,
      "votes_delta": -91.49,
      "votes_change_rate_pct": -24.430559,
      "baseline_vote_share_pct_muni": 8.591191,
      "target_vote_share_pct_muni": 6.304299,
      "vote_share_delta_pct_pt": -2.286892
    },
    {
      "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": 4018.124,
      "target_votes": 2971.0,
      "votes_delta": -1047.124,
      "votes_change_rate_pct": -26.060022,
      "baseline_vote_share_pct_muni": 12.63561,
      "target_vote_share_pct_muni": 8.895476,
      "vote_share_delta_pct_pt": -3.740134
    },
    {
      "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": 2120.241,
      "target_votes": 1542.0,
      "votes_delta": -578.241,
      "votes_change_rate_pct": -27.272419,
      "baseline_vote_share_pct_muni": 12.524313,
      "target_vote_share_pct_muni": 9.305413,
      "vote_share_delta_pct_pt": -3.2189
    },
    {
      "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": 1349.836,
      "target_votes": 980.0,
      "votes_delta": -369.836,
      "votes_change_rate_pct": -27.398588,
      "baseline_vote_share_pct_muni": 11.623491,
      "target_vote_share_pct_muni": 8.660304,
      "vote_share_delta_pct_pt": -2.963187
    },
    {
      "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": 2621.041,
      "target_votes": 1899.0,
      "votes_delta": -722.041,
      "votes_change_rate_pct": -27.547871,
      "baseline_vote_share_pct_muni": 13.954326,
      "target_vote_share_pct_muni": 10.12422,
      "vote_share_delta_pct_pt": -3.830106
    },
    {
      "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": 9711.22,
      "target_votes": 6963.0,
      "votes_delta": -2748.22,
      "votes_change_rate_pct": -28.299431,
      "baseline_vote_share_pct_muni": 13.639545,
      "target_vote_share_pct_muni": 9.92559,
      "vote_share_delta_pct_pt": -3.713955
    },
    {
      "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": 3928.626,
      "target_votes": 2581.0,
      "votes_delta": -1347.626,
      "votes_change_rate_pct": -34.302731,
      "baseline_vote_share_pct_muni": 14.312977,
      "target_vote_share_pct_muni": 9.719084,
      "vote_share_delta_pct_pt": -4.593893
    },
    {
      "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": 2295.024,
      "target_votes": 1465.0,
      "votes_delta": -830.024,
      "votes_change_rate_pct": -36.166245,
      "baseline_vote_share_pct_muni": 16.105432,
      "target_vote_share_pct_muni": 11.331116,
      "vote_share_delta_pct_pt": -4.774316
    },
    {
      "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": 34027.172,
      "target_votes": 20388.0,
      "votes_delta": -13639.172,
      "votes_change_rate_pct": -40.083178,
      "baseline_vote_share_pct_muni": 14.977605,
      "target_vote_share_pct_muni": 10.238281,
      "vote_share_delta_pct_pt": -4.739324
    },
    {
      "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": 2352.779,
      "target_votes": 1335.0,
      "votes_delta": -1017.779,
      "votes_change_rate_pct": -43.258589,
      "baseline_vote_share_pct_muni": 17.109876,
      "target_vote_share_pct_muni": 10.61968,
      "vote_share_delta_pct_pt": -6.490196
    }
  ]
}