Mny2002, Credit cards Average

I set to track detail transactions of credit cards, so
the payment from bank is shown as transfer. Now I need to
estimate how much average I spend on that card each month
over past couple months, but I can't find such function.

I know I can go to payee to get a list of payments to the
card every month, then I can use a calculator to get the
average. Is there a function in Money2002 that would do
this "average" calculation?

Thanks