TRENTON - New Jersey education officials say they now have a handle on just how much bullying happens in public schools.

Numbers recently released show there were more than 12,000 instances of harassment, intimidation and bullying reported in the 2011-12 school year. That's the first year the state's tough new anti-bullying law was in effect.

New Jersey used a new definition of the behaviors, so there's no previous data for comparison.

Schools are required to have anti-bullying programs and coordinators while those measures previously had been merely recommended. And schools are required to report instances of bullying to the state.

The changes were signed into law by Gov. Chris Christie in 2011. They got extra attention after Rutgers University student Tyler Clementi committed suicide. His roommate used a webcam to watch him kissing another man in their dorm room.