Rangeavg in a Dimension of a Pivot Table

[#1]

Good Morning,

I need your help to know if is possible to do a sequence of AVG in a dimension of a Pivot Table.

The Columns Raw e Net timing Average should be calculate as Progressive avg of the coluumns Raw and Net timing Cycle(aggr for Data)

To take as example the Report Data for example for the Date 29/01/2011 the first row of the colum Net timing Average

should be 274 / 1,the seocnd (274+131)/2, the third (274+131+171)/3 ….until the sitxth row and then restart with 1 for the rows of the Data 30/01/2011

Many thanks for the help and for the attentions