National Crime Victimization Survey (NCVS) has been a major source of national estimates of crime victimization rates since 1993. Both violent crime and property crime victimization rates have declined since 1993, according to the latest report:
In 2014, U.S. residents age 12 or older experienced
an estimated 5.4 million violent victimizations
and 15.3 million property victimizations,
according to the Bureau of Justice Statistics’ (BJS)
National Crime Victimization Survey (NCVS).
There was no significant change in the overall rate
of violent crime, defined as rape or sexual assault,
robbery, aggravated assault, and simple assault, from
2013 (23.2 victimizations per 1,000 persons age 12 or
older) to 2014 (20.1 per 1,000) (figure 1). However,
the rate of violent crime in 2014 was lower than the
rate in 2012 (26.1 per 1,000). From 1993 to 2014, the
rate of violent crime declined from 79.8 to 20.1 per
1,000.
The overall property crime rate (which includes
household burglary, theft, and motor vehicle theft)
decreased from 131.4 victimizations per 1,000
households in 2013 to 118.1 victimizations per
1,000 in 2014. The decline in theft accounted for the
majority of the decrease in property crime. Since
1993, the rate of property crime declined from
351.8 to 118.1 victimizations per 1,000 households.
http://www.bjs.gov/content/pub/pdf/cv14.pdf