{ "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": "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": { 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"太田市", "municipality_name_en": "Ota-shi", "baseline_votes": 3228.181, "target_votes": 3881.0, "votes_delta": 652.819, "votes_change_rate_pct": 20.222503, "baseline_vote_share_pct_muni": 3.569299, "target_vote_share_pct_muni": 4.492678, "vote_share_delta_pct_pt": 0.923379 }, { "prefecture_code": "10", "prefecture_name": "群馬県", "prefecture_name_en": "Gunma", "jis_code": "105236", "municipality_name": "千代田町", "municipality_name_en": "Chiyoda-machi", "baseline_votes": 162.0, "target_votes": 192.0, "votes_delta": 30.0, "votes_change_rate_pct": 18.518519, "baseline_vote_share_pct_muni": 3.375703, "target_vote_share_pct_muni": 3.898477, "vote_share_delta_pct_pt": 0.522774 }, { "prefecture_code": "10", "prefecture_name": "群馬県", "prefecture_name_en": "Gunma", "jis_code": "102121", "municipality_name": "みどり市", "municipality_name_en": "Midori-shi", "baseline_votes": 744.0, "target_votes": 881.0, "votes_delta": 137.0, "votes_change_rate_pct": 18.413978, "baseline_vote_share_pct_muni": 3.557256, 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"municipality_name": "高崎市", "municipality_name_en": "Takasaki-shi", "baseline_votes": 6542.059, "target_votes": 6290.0, "votes_delta": -252.059, "votes_change_rate_pct": -3.8529, "baseline_vote_share_pct_muni": 3.788106, "target_vote_share_pct_muni": 4.802113, "vote_share_delta_pct_pt": 1.014007 } ] }