"Gun violence has received no shortage of attention. But one bright spot has gotten much less: the number of accidental shooting deaths has steadily declined.
There were 489 people killed in unintentional shootings in the U.S. in 2015, the most recent year for which data is available. That was down from 824 deaths in 1999,
according to the Centers for Disease Control and Prevention. Taking into account population growth over that time, the rate fell 48%.
Experts attribute the decline to a mix of gun safety education programs, state laws regulating gun storage in homes and a drop in the number of households that have guns. While the improvement occurred in every state, those with the most guns and the fewest laws continue to have the most accidental shooting deaths.
The gains were overshadowed by an overall rise in gun deaths driven by the top two causes: suicides and homicides. Accidents made up just 1.3% of the 36,247 U.S.
shooting deaths in 2015."
http://www.latimes.com/nation/la-na-accidental-gun-deaths-20180101-story.htmly
My main point was about the long-term trend. It can always go up or down every year, but we have to look at the trend over time:
Total Deaths by Firearms per 100,000
1993: 15.2
2014: 10.5
Homicides by Firearms per 100,000
1993: 7.0
2014: 3.4
Suicides by Firearms per 100,000
1993: 7.2
2014: 6.7
Total Homicide Rate per 100,000
1970: 7.9
1980: 10.2
1990: 9.4
2000: 5.5
2010: 4.8
2014: 4.5
All this was occurring while almost all states were implementing handgun carry laws. I don't think that had anything to do with fewer deaths, but neither can we say it caused more. While the number of guns increased the percentage of households with guns has continued to decline (as have hunting licenses).