docs: public static int extractYearMonth(TimeUnitRange range, int v) {
  		switch (range) {
  			case YEAR: return v / 12;
  			case MONTH: return v % 12;
  			case QUARTER: return (v % 12 + 2) / 3;
  			default: throw new UnsupportedOperationException("Unsupported TimeUnitRange: " + range);
  		}
  	}