extern const int cTradePlanTargetUnitTypeID = 0;
extern const int cTradePlanTargetUnitID = 1;
extern const int cTradePlanStartPosition = 2;
extern const int cTradePlanTradeUnitType = 3;
extern const int cTradePlanTradeUnitTypeMax = 4;
extern const int cTradePlanMarketID = 5;