Gun statistics

This isn't a current event, but it does relate to this week's reading. I was curious about the statement on page 46 that guns are used far more often in self defense than they are in a crime. I don't think there is a lot of data to back up this statement, since likely no one collects actual reports of guns used when they don't harm anyone, but in my research I found this study. It has a lot of statistics compiled from the FBI databases. I thought it was interesting that criminal homicides vastly outnumber justifiable homicides (which is where homicides committed as self-defense would fall).  http://www.vpc.org/studies/justifiable15.pdf