Seven Serious Years It may seem as if two adult groups include almost as many offenders and victims as the green emerging adult group, but notice the age span. The adult groups are ten and fifteen years. A person is more than twice as likely to be raped, murdered, or seriously wounded (usually by an emerging adult) at age 20 than age 40).
Source: U.S. Department of Justice, Bureau of Justice Statistics, 2011.
Full Cite: U.S. Department of Justice, Office of Justice Programs, Bureau of Justice Statistics. “Homicide Rates in the United States, 1980–2008.” Table 1. http://www.bjs.gov/content/pub/pdf/htus8008.pdf