{ "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": "15", "prefecture_name": "新潟県", "prefecture_name_en": "Niigata", "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": { "point_grain": "municipality", "point_count": 38, "municipality_count": 38, "min_votes_change_rate_pct": -49.152542, "max_votes_change_rate_pct": 25.0 }, "municipalities": [ { "prefecture_code": "15", "prefecture_name": "新潟県", "prefecture_name_en": "Niigata", "jis_code": "155861", "municipality_name": "粟島浦村", "municipality_name_en": "Awashimaura-mura", "baseline_votes": 4.0, "target_votes": 5.0, "votes_delta": 1.0, "votes_change_rate_pct": 25.0, "baseline_vote_share_pct_muni": 1.809955, "target_vote_share_pct_muni": 2.336449, "vote_share_delta_pct_pt": 0.526494 }, { "prefecture_code": "15", "prefecture_name": "新潟県", "prefecture_name_en": "Niigata", "jis_code": "155810", "municipality_name": "関川村", "municipality_name_en": "Sekikawa-mura", "baseline_votes": 64.0, "target_votes": 54.0, "votes_delta": -10.0, "votes_change_rate_pct": -15.625, "baseline_vote_share_pct_muni": 2.404207, "target_vote_share_pct_muni": 2.057927, "vote_share_delta_pct_pt": -0.34628 }, { "prefecture_code": "15", 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"15", "prefecture_name": "新潟県", "prefecture_name_en": "Niigata", "jis_code": "152188", "municipality_name": "五泉市", "municipality_name_en": "Gosen-shi", "baseline_votes": 708.0, "target_votes": 413.0, "votes_delta": -295.0, "votes_change_rate_pct": -41.666667, "baseline_vote_share_pct_muni": 3.082684, "target_vote_share_pct_muni": 1.86937, "vote_share_delta_pct_pt": -1.213314 }, { "prefecture_code": "15", "prefecture_name": "新潟県", "prefecture_name_en": "Niigata", "jis_code": "152226", "municipality_name": "上越市", "municipality_name_en": "Joetsu-shi", "baseline_votes": 3128.0, "target_votes": 1820.0, "votes_delta": -1308.0, "votes_change_rate_pct": -41.815857, "baseline_vote_share_pct_muni": 3.360983, "target_vote_share_pct_muni": 2.080214, "vote_share_delta_pct_pt": -1.280769 }, { "prefecture_code": "15", "prefecture_name": "新潟県", "prefecture_name_en": "Niigata", "jis_code": "152021", "municipality_name": "長岡市", "municipality_name_en": "Nagaoka-shi", "baseline_votes": 4600.0, 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