Disney does not release these numbers. So it can only be speculated on and guessed at. I know we went Halloween night in 2003 and thought it was as crowded as when we went during Easter in 2002. Maybe not the wait times but the getting around part was very difficult. I think the number is a lot higher than most would guess. I know we went to the first party on October 1st this past year and the difference in crowd levels was amazing.