The murder rate declined significantly in the United States in the 1990s:
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Most homicides in the US (74.4 percent in 2016) are committed with guns, so it should come as no surprise that the gun homicide rate dropped over this period, too. Michael Planty and Jennifer Truman of the Bureau of Justice Statistics found that between 1993 and 2011, gun homicides fell 39 percent, and non-fatal firearm crimes fell 69 percent.
There was a slight uptick in murder rates in 2015 and 2016, but they fell in 2017 and appear to have fallen in 2018 too.
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