NIBRS Bias Crime Incidents by Age and Number of Offenders and Victims
single victim multple victims single victim multiple victims
juvenile juvenile adult adults Total
single juvenile Count 294 42 137 12 485
Row % 60.6 8.7 28.2 2.5 100.0
Col % 30.1 12.8 4.3 3.1 10.0
Total % 6.0 0.9 2.8 0.2 10.0
multiple offenders with juvenile Count 134.0 102.0 120.0 28.0 384.0
Row % 34.9 26.6 31.3 7.3 100.0
Col % 13.7 31.0 3.8 7.2 7.9
Total % 2.7 2.1 2.5 0.6 7.9
single adult Count 187.0 91.0 1363.0 141.0 1782.0
Row % 10.5 5.1 76.5 7.9 100.0
Col % 19.2 27.7 42.9 36.1 36.6
Total % 3.8 1.9 28.0 2.9 36.6
multiple adult Count 28.0 27.0 193.0 106.0 354.0
Row % 7.9 7.6 54.5 29.9 100.0
Col % 2.9 8.2 6.1 27.1 7.3
Total % 0.6 0.6 4.0 2.2 7.3
single unknown Count 309.0 51.0 1276.0 84.0 1720.0
Row % 18.0 3.0 74.2 4.9 100.0
Col % 31.7 15.5 40.2 21.5 35.3
Total % 6.3 1.0 26.2 1.7 35.3
multiple unknown Count 24.0 16.0 89.0 20.0 149.0
Row % 16.1 10.7 59.7 13.4 100.0
Col % 2.5 4.9 2.8 5.1 3.1
Total % 0.5 0.3 1.8 0.4 3.1
Count 976.0 329.0 3178.0 391.0 4874.0
Row % 20.0 6.8 65.2 8.0 100.0
Col % 100.0 100.0 100.0 100.0 100.0
Total % 20.0 6.8 65.2 8.0 100.0
Source: NIBRS 1995-2000
Unit of Count - Incident (where the victim was an individual person and the victim's age was known - N = 4,874)