AA:=VOL;
BB:=REF(MA(VOL,5),1);
CC:=AA/BB;
A1:=CC =0.001 AND CC 0.5;
A2:=CC =0.5 AND CC 0.8;
A3:=CC =0.8 AND CC 1.5;
A4:=CC =1.5 AND CC 2.5;
A5:=CC =2.5 AND CC 5.0;
A6:=CC =5.0 AND CC 10.0;
A7:=CC