I don't think that it's necessary for workshop. It's always about 0.1% per tick I think, the time and amount changes accordingly to keep it at 0.1%. Maybe I'm wrong, but any time I've tried to calculated it it's been around this amount.
University and Gym are also constant per tick, whatever their upgrade is set to.
And Assessment centre is 1 per tick.
Then again, I hope that all these places will increase, especially training centre. Even with Devotee Supreme on all the time, my population increases twice as fast as disciples can be trained.
And I also hope that the cap will be lifted LONG before the intended time mentioned in an earlier reply.
*coughliketodaycough*