In the state of South Carolina there was a total of 27,802 Substance Abuse Treatment Admissions during 2010.
This includes males and females from all age groups and all ethnicities. So if you think your alone in your pursuit for sobriety, you need to realize your in the company of many many others.

Here are some stats on the substances that were being used by these individuals.

Alcohol Abuse Only: 11,571
Alcohol and Drug Abuse: 5,034
Cocaine Abuse (Smoked): 1,377
Cocaine Abuse (Other Route): 577
Marijuana Abuse: 6,085
Heroin Abuse: 221
Other Opiate Abuse: 1,982
PCP Abuse: 4
Hallucinogen Abuse: 13
Amphetamine Abuse: 560
Other Stimulant Abuse: 5
Tranquilzer Abuse: 178
Sedative Abuse: 137
Inhalant Abuse: 18
Other / Unknown: 40

Reference: http://wwwdasis.samhsa.gov/webt/quicklink/SC10.htm