{ "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", "point_grain": "municipality", "selector": { "prefecture_code": "", "prefecture_name": "", "prefecture_name_en": "", "region_id": "hokkaido", "region_name": "北海道地方", "region_name_en": "Hokkaido Region", "party_id": "JHP", "party_label": "保守", "party_label_en": "Japan Conservative Party", "scope": "region", "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": 189, "municipality_count": 189, "min_votes_change_rate_pct": -72.727273, "max_votes_change_rate_pct": 15.789474 }, "municipalities": [ { "prefecture_code": "01", "prefecture_name": "北海道", "prefecture_name_en": "Hokkaido", "jis_code": "015130", "municipality_name": "中頓別町", "municipality_name_en": "Nakatombetsu-cho", "baseline_votes": 19.0, "target_votes": 22.0, "votes_delta": 3.0, "votes_change_rate_pct": 15.789474, "baseline_vote_share_pct_muni": 2.13964, "target_vote_share_pct_muni": 2.612827, "vote_share_delta_pct_pt": 0.473187 }, { "prefecture_code": "01", "prefecture_name": "北海道", "prefecture_name_en": "Hokkaido", "jis_code": "014630", "municipality_name": "占冠村", "municipality_name_en": "Shimukappu-mura", "baseline_votes": 16.0, "target_votes": 17.0, "votes_delta": 1.0, "votes_change_rate_pct": 6.25, "baseline_vote_share_pct_muni": 2.57649, 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