The congregation I used to attend had at one time 86 publishers. Out of that, there were a fair number of children. I would guess somewhere in the 20s at one point. I am sure that number has declined as the children grew up and were discouraged from marrying by the hurdles put in the way. However, too many babies are being born in.
I have no way of knowing how many there are now, and I am not going to risk getting recaptured into the Washtowel Slaveholdery, being herded into the Value Destroyer Training School, and getting used to start the Second Dark Ages just to find out. It's not worth it.