Some interesting number from 2007:
(Intervention group took a DUI class)

Intervention | Control
Court
Chatham 152 42% 95 34%
Clarke 86 24% 81 29%
Hall 126 35% 105 37%

Gender
Male 302 83% 240 85%
Female 62 17% 41 15%

Race
White 227 62% 198 71%
Black 81 22% 68 24%
Hisp 46 13% 12 4%
Asian 5 1% 3 1%

It looks like WHITE MALES are the worst offenders and Asian Females are the least likely to be DUI. We also learn that Hispanics respond to DUI classes by being 3 times WORSE?