{"source_id":"kushiro_population_by_town_age","metric_count":293238,"point_count":0,"latest_fetched_at":"2026-09-10T18:01:15.720Z","metrics":[{"name":"population_female","count":97962,"unit":"persons","period_range":{"start":"2006-03-01","end":"2026-08-31"}},{"name":"population_male","count":97962,"unit":"persons","period_range":{"start":"2006-03-01","end":"2026-08-31"}},{"name":"population_total","count":97314,"unit":"persons","period_range":{"start":"2006-03-01","end":"2026-08-31"}}]}