This is over a period of 30 years though, so that would be 140,000 JW child abusers among 115,000 congregations, over a longer period of time.
This is also in regards to cases where reporting to the police was not mandatory, there are many places where it is mandatory now. This would lower the numbers since many of the abusers would have been caught by the legal system.
I would guess on average a child abuser for every 5-10 congregations world wide regardless of standing in that congregation (since the 1006 documents where for all accusation regardless of standing in the congregation).
It is just a guess though. Guessing the pedophile/congregation ratio atm in Australia would be hard enough, there is simply not enough data to extrapolate any good calculations for the entire world.