{ "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": "06", "prefecture_name": "山形県", "prefecture_name_en": "Yamagata", "party_id": "JHP", "party_label": "保守", "party_label_en": "Japan Conservative 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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"06", "prefecture_name": "山形県", "prefecture_name_en": "Yamagata", "jis_code": "063614", "municipality_name": "金山町", "municipality_name_en": "Kaneyama-machi", "baseline_votes": 41.0, "target_votes": 33.0, "votes_delta": -8.0, "votes_change_rate_pct": -19.512195, "baseline_vote_share_pct_muni": 1.431065, "target_vote_share_pct_muni": 1.22905, "vote_share_delta_pct_pt": -0.202015 }, { "prefecture_code": "06", "prefecture_name": "山形県", "prefecture_name_en": "Yamagata", "jis_code": "064610", "municipality_name": "遊佐町", "municipality_name_en": "Yuza-machi", "baseline_votes": 145.0, "target_votes": 112.0, "votes_delta": -33.0, "votes_change_rate_pct": -22.758621, "baseline_vote_share_pct_muni": 2.228712, "target_vote_share_pct_muni": 1.741564, "vote_share_delta_pct_pt": -0.487148 }, { "prefecture_code": "06", "prefecture_name": "山形県", "prefecture_name_en": "Yamagata", "jis_code": "063819", "municipality_name": "高畠町", "municipality_name_en": "Takahata-machi", "baseline_votes": 260.0, 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{ "prefecture_code": "06", "prefecture_name": "山形県", "prefecture_name_en": "Yamagata", "jis_code": "063665", "municipality_name": "鮭川村", "municipality_name_en": "Sakegawa-mura", "baseline_votes": 33.0, "target_votes": 20.0, "votes_delta": -13.0, "votes_change_rate_pct": -39.393939, "baseline_vote_share_pct_muni": 1.591128, "target_vote_share_pct_muni": 0.983284, "vote_share_delta_pct_pt": -0.607844 }, { "prefecture_code": "06", "prefecture_name": "山形県", "prefecture_name_en": "Yamagata", "jis_code": "062014", "municipality_name": "山形市", "municipality_name_en": "Yamagata-shi", "baseline_votes": 4259.0, "target_votes": 2580.0, "votes_delta": -1679.0, "votes_change_rate_pct": -39.4224, "baseline_vote_share_pct_muni": 3.59382, "target_vote_share_pct_muni": 2.20445, "vote_share_delta_pct_pt": -1.38937 }, { "prefecture_code": "06", "prefecture_name": "山形県", "prefecture_name_en": "Yamagata", "jis_code": "062049", "municipality_name": "酒田市", "municipality_name_en": "Sakata-shi", 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