The only "complete" numbers I'm aware of are those provided by the U.S. Catholic Bishops' National Review Board, which collected data from 195 of the 202 dioceses in the USA, and showed that 95 percent of the dioceses and approximately 60 percent of religious communities had at least one case of sexual abuse over a 52 year period. It is an extraordinary study because it's not based on a statistical sampling, but rather on a comprehensive survey documenting responses for 97% of the Catholic diocesan priesthood.
There are simply no similar (comprehensive) studies available for other religious denominations or congregations; existing "studies" that I know of are either derived from statistical samplings (inclusive of non-clergy staff and unpaid volunteers, i.e. a broader range than just paid clergy), or are unqualified reports using unverifiable raw numbers. Of course, there may be something better out there that I'm not aware of.
Overall, I think using this "insurance claim" method may prove problematic to "match up" with the John Jay Study, but it's a much better start than what's been provided up until now.