{"source_id":"kushiro_population_by_town_age","metric_count":291669,"point_count":0,"latest_fetched_at":"2026-08-16T03:44:01.618Z","metrics":[{"name":"population_female","count":97437,"unit":"persons","period_range":{"start":"2006-03-01","end":"2026-07-31"}},{"name":"population_male","count":97437,"unit":"persons","period_range":{"start":"2006-03-01","end":"2026-07-31"}},{"name":"population_total","count":96795,"unit":"persons","period_range":{"start":"2006-03-01","end":"2026-07-31"}}]}