I took the fact that only 5 at a SA can have a VP..then add into the fact that typically 1600 appts are given out (assuming it is for USNA, USMA, AFA...there was no acknowledgement of which SA), so I just rounded it out to 1 a yr
There is a parent here who has a son at WP (I think) that got the VP for another SA...I clearly recall the conversation b/c I always wondered if the appt came with a big ribbon and balloons

She stated it didn't
She also stated that he got it at the very end, and if I recall correctly it was after he got the apptment to the sister SA