https://www.bbc.com/news/world-us-canada-41488081
This should give you a broad picture. Fact is, a person is eight times more likely to be killed with his/her own firearm than to use it against someone else in self-defense.
This, on whether guns stop crimes (they don't)
https://www.scientificamerican.com/article/more-guns-do-not-stop-more-crimes-evidence-shows/
More stats
http://www.bradycampaign.org/risks-of-having-a-gun-in-the-home
Interestingly, the NRA - when it's not trying to sell membership and merchandise - offers no gun statistics. They either choose to leave that to other organizations or don't want them advertised. But you decide.
https://home.nra.org/
