{"id": "ktb3y", "name_ko": "국고채(3년)", "name_en": "KTB 3-year", "unit": "% per year", "source": "Bank of Korea ECOS 817Y002/010200000", "schema": "kr-rate-history/v1", "service": "kr-rates-fx-v1", "start": "2026-09-06", "end": "2026-10-06", "count": 18, "rows": [{"date": "2026-09-07", "value": 3.9}, {"date": "2026-09-08", "value": 3.901}, {"date": "2026-09-09", "value": 3.91}, {"date": "2026-09-10", "value": 3.93}, {"date": "2026-09-11", "value": 4.014}, {"date": "2026-09-14", "value": 4.025}, {"date": "2026-09-15", "value": 4.091}, {"date": "2026-09-16", "value": 4.053}, {"date": "2026-09-17", "value": 4.063}, {"date": "2026-09-18", "value": 4.035}, {"date": "2026-09-21", "value": 4.056}, {"date": "2026-09-22", "value": 4.04}, {"date": "2026-09-23", "value": 4.006}, {"date": "2026-09-28", "value": 4.119}, {"date": "2026-09-29", "value": 4.076}, {"date": "2026-09-30", "value": 4.011}, {"date": "2026-10-01", "value": 4.01}, {"date": "2026-10-02", "value": 3.937}], "generated_at": "2026-10-05T22:48:56+00:00", "first": {"date": "2026-09-07", "value": 3.9}, "last": {"date": "2026-10-02", "value": 3.937}, "change_bp": 3.7, "min": 3.9, "max": 4.119}