ENUM
An enumeration.
enum ForecastColumnsType {WonValueCurrentPeriodWonValueSamePeriodInPreviousYearWonValueSamePeriodInPreviousYearPercentageWonOpenValueUnweightedOpenValueUnweightedOpenValueWeightedOpenValueRankedOpenValueBalancedLostValueUnweightedWonVsForecastWonOpenVsForecastWonValueVsQuotaWonOpenValueVsQuotaUnweighted}