{
  "source": "Ministry of Finance Japan, JGB Interest Rate (constant-maturity yields)",
  "source_urls": [
    "https://www.mof.go.jp/english/policy/jgbs/reference/interest_rate/historical/jgbcme_all.csv",
    "https://www.mof.go.jp/english/policy/jgbs/reference/interest_rate/jgbcme.csv"
  ],
  "licence": "Public Data License 1.0 (PDL 1.0), Government of Japan",
  "attribution": "Source: Ministry of Finance Japan, JGB Interest Rate (PDL 1.0)",
  "units": "percent per annum",
  "missing_values": "empty cell: MOF published no quote for that maturity on that date; never zero",
  "last_date": "2026-10-09",
  "publisher": "Japan Yield Curve, https://japanyieldcurve.com/",
  "file": "jgb-10y.csv",
  "columns": {
    "date": "session date, YYYY-MM-DD",
    "10Y_yield_percent": "10Y yield, percent"
  },
  "first_quote": {
    "10Y": "1986-07-05"
  }
}