{ "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": "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": { 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"prefecture_code": "15", "prefecture_name": "新潟県", "prefecture_name_en": "Niigata", "jis_code": "153427", "municipality_name": "弥彦村", "municipality_name_en": "Yahiko-mura", "baseline_votes": 82.0, "target_votes": 69.0, "votes_delta": -13.0, "votes_change_rate_pct": -15.853659, "baseline_vote_share_pct_muni": 1.969733, "target_vote_share_pct_muni": 1.639734, "vote_share_delta_pct_pt": -0.329999 }, { "prefecture_code": "15", "prefecture_name": "新潟県", "prefecture_name_en": "Niigata", "jis_code": "152269", "municipality_name": "南魚沼市", "municipality_name_en": "Minamiuonuma-shi", "baseline_votes": 725.0, "target_votes": 604.0, "votes_delta": -121.0, "votes_change_rate_pct": -16.689655, "baseline_vote_share_pct_muni": 2.665637, "target_vote_share_pct_muni": 2.293439, "vote_share_delta_pct_pt": -0.372198 }, { "prefecture_code": "15", "prefecture_name": "新潟県", "prefecture_name_en": "Niigata", "jis_code": "151084", "municipality_name": "新潟市西蒲区", "municipality_name_en": "Nishikan-ku", 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"15", "prefecture_name": "新潟県", "prefecture_name_en": "Niigata", "jis_code": "152226", "municipality_name": "上越市", "municipality_name_en": "Joetsu-shi", "baseline_votes": 1885.547, "target_votes": 1401.0, "votes_delta": -484.547, "votes_change_rate_pct": -25.697954, "baseline_vote_share_pct_muni": 2.025989, "target_vote_share_pct_muni": 1.601308, "vote_share_delta_pct_pt": -0.424681 }, { "prefecture_code": "15", "prefecture_name": "新潟県", "prefecture_name_en": "Niigata", "jis_code": "154059", "municipality_name": "出雲崎町", "municipality_name_en": "Izumozaki-machi", "baseline_votes": 38.0, "target_votes": 28.0, "votes_delta": -10.0, "votes_change_rate_pct": -26.315789, "baseline_vote_share_pct_muni": 1.717126, "target_vote_share_pct_muni": 1.315171, "vote_share_delta_pct_pt": -0.401955 }, { "prefecture_code": "15", "prefecture_name": "新潟県", "prefecture_name_en": "Niigata", "jis_code": "151041", "municipality_name": "新潟市江南区", "municipality_name_en": "Konan-ku", "baseline_votes": 566.0, 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