Anyway...
Whatever the number, I am glad to see some research focusing on the offenders.
We always talk about sexual abuse, rape, domestic violence and sex trafficking in terms of victims and numbers of offences committed but hardly ever in terms of offenders...
Everyone knows the stats on domestic abuse victims...but what about how many men (and women) have committed domestic abuse?
Sex trafficking discussion focuses on the crime gangs and pretty much ignores the fact that it only happens because men have created a massive market for it.
I believe this prevents us from fully addressing the problems simply because it's too 'awkward' to realise the truth of how many 'normal men' are involved in various types of crime against women and children.