{"source_id":"kushiro_population_by_age","metric_count":76356,"point_count":0,"latest_fetched_at":"2026-10-08T18:05:48.154Z","metrics":[{"name":"population_female","count":25452,"unit":"persons","period_range":{"start":"2005-10-01","end":"2026-09-30"}},{"name":"population_male","count":25452,"unit":"persons","period_range":{"start":"2005-10-01","end":"2026-09-30"}},{"name":"population_total","count":25452,"unit":"persons","period_range":{"start":"2005-10-01","end":"2026-09-30"}}]}