{
  "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": "15",
    "prefecture_name": "新潟県",
    "prefecture_name_en": "Niigata",
    "party_id": "TMI",
    "party_label": "みらい",
    "party_label_en": "Team Mirai",
    "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": 37,
    "municipality_count": 37,
    "min_votes_change_rate_pct": null,
    "max_votes_change_rate_pct": null
  },
  "municipalities": [
    {
      "prefecture_code": "15",
      "prefecture_name": "新潟県",
      "prefecture_name_en": "Niigata",
      "jis_code": "152250",
      "municipality_name": "魚沼市",
      "municipality_name_en": "Uonuma-shi",
      "baseline_votes": 155.0,
      "target_votes": null,
      "votes_delta": null,
      "votes_change_rate_pct": null,
      "baseline_vote_share_pct_muni": 0.864473,
      "target_vote_share_pct_muni": null,
      "vote_share_delta_pct_pt": null
    },
    {
      "prefecture_code": "15",
      "prefecture_name": "新潟県",
      "prefecture_name_en": "Niigata",
      "jis_code": "152234",
      "municipality_name": "阿賀野市",
      "municipality_name_en": "Agano-shi",
      "baseline_votes": 156.0,
      "target_votes": null,
      "votes_delta": null,
      "votes_change_rate_pct": null,
      "baseline_vote_share_pct_muni": 0.778094,
      "target_vote_share_pct_muni": null,
      "vote_share_delta_pct_pt": null
    },
    {
      "prefecture_code": "15",
      "prefecture_name": "新潟県",
      "prefecture_name_en": "Niigata",
      "jis_code": "153850",
      "municipality_name": "阿賀町",
      "municipality_name_en": "Aga-machi",
      "baseline_votes": 20.5,
      "target_votes": null,
      "votes_delta": null,
      "votes_change_rate_pct": null,
      "baseline_vote_share_pct_muni": 0.381679,
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      "vote_share_delta_pct_pt": null
    },
    {
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      "prefecture_name": "新潟県",
      "prefecture_name_en": "Niigata",
      "jis_code": "155810",
      "municipality_name": "関川村",
      "municipality_name_en": "Sekikawa-mura",
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      "target_votes": null,
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      "votes_change_rate_pct": null,
      "baseline_vote_share_pct_muni": 0.488355,
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      "vote_share_delta_pct_pt": null
    },
    {
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      "prefecture_name": "新潟県",
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      "municipality_name": "長岡市",
      "municipality_name_en": "Nagaoka-shi",
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      "vote_share_delta_pct_pt": null
    },
    {
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      "municipality_name": "見附市",
      "municipality_name_en": "Mitsuke-shi",
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    },
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      "municipality_name": "胎内市",
      "municipality_name_en": "Tainai-shi",
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      "municipality_name": "聖籠町",
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      "municipality_name": "糸魚川市",
      "municipality_name_en": "Itoigawa-shi",
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      "municipality_name_en": "Tsubame-shi",
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      "municipality_name_en": "Yuzawa-machi",
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    },
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      "municipality_name_en": "Tsunan-machi",
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      "jis_code": "152188",
      "municipality_name": "五泉市",
      "municipality_name_en": "Gosen-shi",
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      "prefecture_name": "新潟県",
      "prefecture_name_en": "Niigata",
      "jis_code": "152226",
      "municipality_name": "上越市",
      "municipality_name_en": "Joetsu-shi",
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    {
      "prefecture_code": "15",
      "prefecture_name": "新潟県",
      "prefecture_name_en": "Niigata",
      "jis_code": "152048",
      "municipality_name": "三条市",
      "municipality_name_en": "Sanjo-shi",
      "baseline_votes": 539.0,
      "target_votes": null,
      "votes_delta": null,
      "votes_change_rate_pct": null,
      "baseline_vote_share_pct_muni": 1.107823,
      "target_vote_share_pct_muni": null,
      "vote_share_delta_pct_pt": null
    }
  ]
}
