CofC,
I don't know the numbers, but I do know the society has paid for college for some Bethelites.
I can also tell you that Judah Ben Schroeder who is the son of deceased GB member Albert Schroeder went to college. I think Judah Ben Schroeder pretty much grew up at Bethel since his dad was a member of the GB for many years. I don't know who paid for it. I suppose Albert Schroeder could have been affluent enough to pay for it himself, or perhaps Judah Ben Schroeder paid for it himself. I don not know. I do know that when I visited the congregation that they each attended one time in 1995, the brother I was with told me that he was a college graduate and I thought it was the height of hypocrisy, but, like we all used to do, I just squashed it and put it in the back of my mind and thought it didn't matter.