Grouping by Page Count in CR 8.5

Datasource: Access 2000
CrystalReports: 8.5
Language: Visual Basic 6

I wonder if someone can help with this.

I am have a report that collates customer details and it is currently grouped on customer number.

These details are used to generate mail shots and it is now a requirement that the report is ordered by page count.

Is there a way that the total number of pages printed for each customer number can be used to sort the report.

So far the formulas I have tried cannot be completed because the report needs to generated first so the page numbers can be calculated.

The solution can be either in code or in the report but if in the report I need to be able to obtain the page totals for each customer number into code.

Many thanks in advance.Do you want to know how many pages does Report have for each Customer?sql