As I said in an earlier post, I am not sure what figures you need, and if they are really available. For instance, the airline industry uses incident per mi flown. (crashes, death, etc. for the incident). But maybe it should be per flight. If you were looking at what your chance of going down was, if you looked at a long range carrier vs. short range carrier you might find different ratios as the long range has few flights with lots of miles, vs short range having many flight of very short mi. The mi might not equal, the fact that take off and landings are much more deadly and the shorter range carrier has many more of them etc.
So should you be looking at incidents per number of gun owners? Incidents per number of rounds fired? Incidents per population density? Incidents by geographric region based on income level?
Further, if there aren't enough incidents, then the statistics aren't really based on good numbers. e.g. The mayor of a town of 50,000 claiming, gun violence is up 50% in our town this year. Yes it went from 2 to 3. Statistically insignificant.
Given how statistics are used by both sides to make their arguments, suntzu, i believe if the stats you are asking about were really out there, they WOULD already be in use by both sides!
Personally, I agree with glockman that training 'in general' whether for drivers ed or whatever will teach you. So a class in gun safety and laws for a day would certainly make things safer than no class. It won't prevent EVERY accident, but based on other training statistics that were measured, it will lessen them.
In MA, the requirement for CCW is take a NRA class where you may or may not get a chance to shoot. That gives you the right to ask the local police chief for a license. Depending upon your town and your standing, you hopefully get a license, no restrictions (let's not get into crazy MA law). AT THAT POINT, having never shot or held a gun, you can then go into your local gun store, purchase a gun and holster, and walk out CCW! It's pretty damn scary to me eating dinner at applebees that the guy next to me has a loaded weapon and his entire experience is that he spent a few hours listening to someone and reading a book written at a 6th grade level. Oh wait, the guy at the local gun store when selling him the gun is required to give him a 3 minute presentation on how it works.