Data from 0EC_PCA_3

Hi all!!

I have this situation:

In the R/3 system Im testing the 0EC_PCA_3 extractor; in the transaction RSA3.

If I test the information in Full; I obtein 65,000 records and if i test the information in the initial delta mode i obtein less records, for example 60,000; this is correct?

Why exists this difference?

Thanks for the information