Typical size of entering associate/business analyst class?

Hey guys,

I know for firms like MBB, the class size is roughly 10-15, maybe more for bigger offices. At least for Bain LA office last year there were 12 people.

I was wondering if anyone can comment on the other firms like Big4 Advisory or Accenture. How many people would they typically hire for an entering class in a big office such as LA SF or NY?

Thanks!