@jehovaxx: they used to, but nowadays they count any warm body.
I remember back in the day when it was only baptized members with at least 8-10 hours of service for 3 consecutive months.
Then it was all baptized members that were active (10h) in service at least that month.
Then they included active children of baptized members (and we were so excited to turn in our own hour counting form, at least until we became older teenagers)
Then unbaptized publishers got their reports included.
Eventually the service hours got dropped to 2
Then you just had to come to the meetings regularly
Then the service hours dropped completely.
Now I guess they count anyone that ever shows up.
Back in the day surveys showed 2x number of people that reported being a JW vs what the WTBTS reported number of JW to be. Today it’s much closer.
So it depends on what your definition of “growth” is. Same number of bodies, counted differently. In 1995 there was 1 Jehovah's Witness for every 294 people, but by 2023 it had fallen to 1 in 379.