{ "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": "46", "prefecture_name": "鹿児島県", "prefecture_name_en": "Kagoshima", "party_id": "ISH", "party_label": "維新", "party_label_en": "Japan Innovation Party (Ishin)", "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": 43, "municipality_count": 43, "min_votes_change_rate_pct": -19.458978, "max_votes_change_rate_pct": 76.744186 }, "municipalities": [ { "prefecture_code": "46", "prefecture_name": "鹿児島県", "prefecture_name_en": "Kagoshima", "jis_code": "465291", "municipality_name": "喜界町", "municipality_name_en": "Kikai-cho", "baseline_votes": 86.0, "target_votes": 152.0, "votes_delta": 66.0, "votes_change_rate_pct": 76.744186, "baseline_vote_share_pct_muni": 2.549659, "target_vote_share_pct_muni": 4.665439, "vote_share_delta_pct_pt": 2.11578 }, { "prefecture_code": "46", "prefecture_name": "鹿児島県", "prefecture_name_en": "Kagoshima", "jis_code": "465321", "municipality_name": "伊仙町", "municipality_name_en": "Isen-cho", "baseline_votes": 73.0, "target_votes": 118.0, "votes_delta": 45.0, "votes_change_rate_pct": 61.643836, "baseline_vote_share_pct_muni": 2.519848, "target_vote_share_pct_muni": 3.991881, "vote_share_delta_pct_pt": 1.472033 }, { 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