GL report not showing in proper sort order

Hi all,

I have opened the GL report which is in Reports-> Financial-> Accounting->GL Report, I am getting the data correctly but the order of the data is not correct, Suppose it showing the data order by BP, but Under BP001 its showing other BP's(BP002,BP003) data also. Can any one tell me whether it's a SAP report issue or what?

refe: see the attachment