WDW is easy... it's based on housing (I used to know the exact numbers, I posted them a couple years ago when I was on the CP because they told them to us, this is a faded memory).
Chathem and Patterson houses approx. 1800 CPs a piece.
Vista houses approx. 2600 CPs.
Commons houses approx. 1000 - but mostly ICPs.
Add that together and you get: 7,200.
Keep in mind:
at least 1,000 are ICPs
part of Patterson was used for PIs in the past
about 1,000 CPs extend
that leaves you about 5,000 new CPs a program.