| Known offender | Total | 1999 | 2000 | 20011 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of known offenders | 588 | 49 | 66 | 74 | 63 | 58 | 61 | 56 | 55 | 64 | 42 | |
| Race | White | 330 | 27 | 46 | 44 | 39 | 31 | 27 | 36 | 25 | 35 | 20 |
| Black | 246 | 19 | 20 | 27 | 24 | 26 | 34 | 20 | 29 | 26 | 21 | |
| Asian/Pacific Islander | 6 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | |
| American Indian/Alaskan Native | 4 | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | |
| Not reported | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | |
| Sex | Male | 577 | 47 | 64 | 73 | 61 | 57 | 61 | 56 | 54 | 64 | 40 |
| Female | 11 | 2 | 2 | 1 | 2 | 1 | 0 | 0 | 1 | 0 | 2 | |