 The National Crime Victimization Survey (NCVS) program, established in 1972, is a national survey of a representative sample of households in the United States which covers the frequency of crime victimization and the characteristics and consequences of victimization.The primary purpose behind the NCVS program is to gather information on crimes that were not reported to police, though information is also collected on reported crimes.The survey collects data on rape, assault, robbery, burglary, personal and household larceny and motor vehicle theft.