From what I understand, Wisconsin's CCW program was based off of Florida's program. You could use the Florida statistics to show that CCW holders are proven to be law abiding citizens.
http://licgweb.doacs.state.fl.us/stats/cw_monthly.html
2,031,106 licenses issued in 25 years
168 licenses revoked for firearm related crimes
168/2031106 = .00008 or .008% revoked
Gun owners are not even remotely likely to use their gun to commit a crime.
MF