現金股利

請問我寫了個連續五年現金股利成長(包含持平),為什麼有出現衰退的標的物, 能幫忙確認程式碼是否有問題,thx

value1=getfield("現金股利","Y");

value2=getfield("現金股利","Y")[1];

value3=getfield("現金股利","Y")[2];

value4=getfield("現金股利","Y")[3];

value5=getfield("現金股利","Y")[4];

if (value1-value2)>=0 and (value2-value3)>=0 and (value3-value4)>=0 and (value4-value5)>=0 then ret=1;

ret=1;

outputField1(value1,"第一年");

outputField2(value2,"第二年");

outputField3(value3,"第三年");

outputField4(value4,"第四年");

outputField5(value5,"第五年");