{"source_id":"kushiro_commerce_stats","metric_count":15,"point_count":0,"latest_fetched_at":"2026-05-26T06:40:20.669Z","metrics":[{"name":"commerce_annual_sales","count":5,"unit":"万円","period_range":{"start":"2007-01-01","end":"2021-12-31"}},{"name":"commerce_employees","count":5,"unit":"人","period_range":{"start":"2007-01-01","end":"2021-12-31"}},{"name":"commerce_establishments","count":5,"unit":"事業所","period_range":{"start":"2007-01-01","end":"2021-12-31"}}]}