I haven't seen that high of a statistic. Please provide the source.
US clerics accused of abuse from 1950-2002: 4,392.
195 dioceses in the US would equal less than 23 per diocese over 52 yrs, which would be .433136 per diocese per year.
Any amount is unacceptable but so are lies and mischaractarization.
Here’s agood source on every aspect of the sex scandal in the Catholic Church:
http://www.beliefnet.com/story/102/story_10276_1.html