YearsOrRange

        Duration as a single `value`, a `min`/`max` range, or both, measured
        in years (e.g. lease length 3–7 years, or an exact 5-year contract). The fields are
        independent and all optional.
        Display precedence: when both are present, prefer value (the headline number);

fall back to min/max for indicative display.

max
Type: null | number | string Pattern: ^-?(?:0|[1-9]\d*)(?:\.\d+)?$Format: double
min:
0

Maximum duration in years.
min
Type: null | number | string Pattern: ^-?(?:0|[1-9]\d*)(?:\.\d+)?$Format: double
min:
0

Minimum duration in years.
value
Type: null | number | string Pattern: ^-?(?:0|[1-9]\d*)(?:\.\d+)?$Format: double
min:
0

Single-point duration (the headline number, or the midpoint of a range).