In the state of Virginia there was a total of 30,119 Substance Abuse Treatment Admissions during 2009.
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: 5,639
Alcohol and Drug Abuse: 6,681
Cocaine Abuse (Smoked): 2,513
Cocaine Abuse (Other Route): 928
Marijuana Abuse: 6,284
Heroin Abuse: 2,426
Other Opiate Abuse: 2,313
PCP Abuse: 102
Hallucinogen Abuse: 33
Amphetamine Abuse: 298
Other Stimulant Abuse: 32
Tranquilzer Abuse: 210
Sedative Abuse: 61
Inhalant Abuse: 23
Other / Unknown: 2,576

Reference: http://wwwdasis.samhsa.gov/webt/quicklink/VA09.htm