请问为何这个选股公式只能选到2002年?

VarA:=CLOSE/MA(CLOSE,40)*100<78;VarB:=CLOSE/MA(CLOSE,60)*100<74;VarC:=HIGH>LOW*1.051;VarD:=VarC AND COUNT(VarC,5)>1;VarE:=VarD AND (VarA OR VarB);VarF:=DMA(EMA(CLOSE,12),SUM(VOL,5)/3/CAPITAL);
Var10:=(CLOSE-VarF) /VarF*100+30-(REF(HIGH,13)/CLOSE-1.35)*100;
Var11:=(CLOSE-REF(CLOSE,5))/CLOSE*100<-9;Var12:=WINNER(CLOSE);Var13:=EMA((INDEXC-MA(INDEXC,10))/INDEXC*100,14)<-4.9;
Var14:=(MA(VOL,5)-VOL)/CAPITAL*100<0.8;Var15:=(VOL-MA(VOL,21))/VOL*100;
a1:=Var13 AND Var11 AND Var12<0.12 AND Var14 AND Var15>18;
Var1:=INDEXC;Var2:=MA(Var1,6);Var3:=MA(Var1,24);Var4:=MA(Var1,32);Var5:=MA(Var1,62);Var6:=MA(Var1,105);Var7:=Var5<REF(Var5,1) AND Var6<REF(Var6,1) AND Var5<Var6*0.98;
Var8:=Var4>Var2*1.11 AND Var3>Var2*1.095;Var9:=Var2>Var1*0.95;
a2:=Var7 AND Var8 AND Var9 AND CLOSE/COST(8)<=0.8 AND CLOSE<OPEN;
a1 and a2;
请问为何这个选股公式只能选到2002年?
请高手修改?????????