That is 1 per 60. If you have kids, and you are in a congregation of 120 publishers, you are exposing your kids continuously to 2 child abusers. Do you know them... or did the society not bother to inform you... good luck
Your calculations have to take into account that the 1006 cases happened over a period of more than 60 years. So your children have to remain children for 60 years and be regular JW's. It's not gonna work.
The situation is very bad as it is, but 2 child abusers per congregation at any given time is a gross exaggeration.