Add Blank Records (which doesn't exist) in Access Report

Hi All

I need help in access report, how to make blank records (Which doesn't exist) to fill until 20 for every page of the report?
the example of what I mean is in the attachment.

The report is a Group Report. Each group is printed on new page. And the total record will always change based on the record in each group. So how to make it so all the page have 20 record in the report?