The percentage of violent crimes in the U.S. by people perceived to be gang members hovered at around six percent between 1998 and 2003, says the U.S. Bureau of Justice Statistics. The figure was about 10 perecent in the mid-1990s. Paralleling the crime drop overall, violence by perceived gang members dropped from 1.1 million cases in 1994 to 341,000 in 2003.
Citing FBI data, BJS said that about 6.5 percent of homicides, and 9.3 percent of firearm homicides, were attributed to gangs in 2003. Nearly half of the gang attacks between 1993 and 2003 involved more than one offender. The BJS report said that Hispanics were much more likely than non-Hispanics to be victims of violent crimes by gang members.