{"database": "calcfi-open-data", "table": "observations", "rows": [["10-year-treasury", "2026-05-15", 4.59, "percent"]], "columns": ["slug", "date", "value", "unit"], "primary_keys": ["slug", "date"], "primary_key_values": ["10-year-treasury", "2026-05-15"], "units": {}, "query_ms": 0.8076640001490887, "source": "CalcFi Open Data \u00e2\u20ac\u201d primary-source mirror", "source_url": "https://calcfi.app/developers", "license": "CC BY 4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/"}