{
  "series": "EXR.D.USD.EUR.SP00.A",
  "raw_sha256": "12bda408fce288c0d9f68de03beffc6d89592a8fde37aff2d336b122baaddab3",
  "unit": "USD per EUR",
  "split_policy": "Each five-year subperiod resets its predecessor at its own first observation: no 2020-2021 bridging change in 2021-2025. Full 2016-2025 period includes that one bridge. No pre-2016 rate added. Drawdown peak resets at each subperiod start.",
  "stdev_policy": "Headline population standard deviation (denominator n) describes these observed changes. Sample standard deviation (n-1) also supplied. Neither is annualised or an estimate of future trading risk.",
  "quantile_policy": "Linear interpolation at (n-1)*p (type 7); no resampling or normal distribution fit.",
  "change_policy": "100*(P_t/P_previous-1) and 100*ln(P_t/P_previous), between consecutive published observations, not necessarily 24 hours.",
  "drawdown_policy": "Largest percentage decline of USD-per-EUR reference rate from an earlier observed running peak within the selected period; no equity, leverage, spread, financing or intraday path.",
  "quality": {
    "rows": 2560,
    "duplicates": 0,
    "nonpositive_values": 0,
    "nonfinite_values": 0,
    "observation_status_counts": {
      "A": 2560
    },
    "filled_missing_dates": 0,
    "note": "No calendar completion or missing-weekend inference; changes use available consecutive observations."
  },
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}