The proportion of serious violent crimes committed by juveniles has generally declined since 1993.

• Victims perceived that between 1/5 and 1/4 of violent crimes were committed by juveniles.
  
  
• According to the victim's perception of the age of the offender, the number of serious violent offenses committed by persons ages 12 to 17 declined 61% from 1993 to 2005, while those committed by persons older than 17 fell 58%.

To view data, click on the chart.

[D]

Note:  The serious violent crimes included are rape, robbery, aggravated assault, and homicide.

The National Crime Victimization Survey redesign was implemented in 1993; the area with the lighter shading is before the redesign and the darker area after the redesign. The data before 1993 are adjusted to make them comparable with data collected since the redesign. The adjustment methods are described in Criminal Victimization 1973-95. Estimates for 1993 and beyond are based on collection year while earlier estimates are based on data year. Changes to the NCVS and their impact upon the survey's estimates in 2006 are discussed in the Criminal Victimization, 2006 Technical Notes. For additional information about the methods used, see Criminal Victimization 2009.

Age 12-17 includes victimizations in which the victim perceived that at least one offender was age 12-17.

Sources: Rape, robbery, and assault data are from the National Crime Victimization Survey (NCVS). Ongoing since 1972 with a redesign in 1993, this survey of households interviews up to 134,000 persons age 12 and older in as many as 77,200 households twice each year about their victimizations from crime. The homicide data are collected by the FBI's Uniform Crime Reports (UCR) from reports from law enforcement agencies.