Reported violent crime rate in the United States
The United States Federal Bureau of Investigation tracks the rate of reported violent crimes per 100,000 U.S. inhabitants. In the timeline above, rates are shown starting in 1990. The rate of reported violent crime has fallen since a high of 758.20 reported crimes in 1991 to a low of 387.1 reported violent crimes in 2011. According to the FBI, in 2012 the reported violent crime rate was highest in the District of Columbia, at 1,243.70, followed by Tennessee (643.60 crimes), Nevada (607.60 crimes) and Alaska (603.20 crimes).
In 2012, there were roughly 1.2 million violent crimes committed in the United States. This number can be compared to the total number of property crimes, roughly nine billion that year. Of violent crimes in 2012, there were roughly 760 thousand aggravated assaults, 354 thousand robberies, 84 thousand forcible rapes and around 15 thousand murders and non-negligent manslaughters.
Though the violent crime rate was down in 2012, the number of law enforcement officers also fell. Between 2004 and 2009, the number of law enforcement officers in the United States rose from around 430,000 to 450,000. However, since 2010, the number of officers fell to 429,925 officers in 2012. That year, the crime clearance rate was highest for murders and non-negligent manslaughters, with around 62.5 percent of murders being solved by investigators and a suspect being charged with the crime. Roughly 55.8 percent of aggravated assaults were cleared in 2012. A dossier of statistics on violent crime in the U.S. can be found here.