{ "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": "10", "prefecture_name": "群馬県", "prefecture_name_en": "Gunma", "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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"vote_share_delta_pct_pt": -1.909669 }, { "prefecture_code": "10", "prefecture_name": "群馬県", "prefecture_name_en": "Gunma", "jis_code": "103446", "municipality_name": "榛東村", "municipality_name_en": "Shinto-mura", "baseline_votes": 291.0, "target_votes": 120.0, "votes_delta": -171.0, "votes_change_rate_pct": -58.762887, "baseline_vote_share_pct_muni": 4.278153, "target_vote_share_pct_muni": 1.838517, "vote_share_delta_pct_pt": -2.439636 } ] }