Activity code count ?

Hello,

Is it possible with Primavera to calculate number of activity codes?

I am utilising activity codes to enter unique work order numbers or job numbers as such, and am looking for a way I can create a column in reports which tallies up total number of jobs. Similiar to activty count, but counts the amount of activity codes. My reports can then stipulate the number of jobs and budgeted manhours for each job. 

Below is a copy of my report thus far, where I would like create a third column to include number of jobs; (which would essentially be a tally of activty codes)

Any help or guidance would be much appreciated

Thankls in advance,

Ash.