In the state of Montana there was a total of 7,744 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: 2,003
Alcohol and Drug Abuse: 2,699
Cocaine Abuse (Smoked): 17
Cocaine Abuse (Other Route): 73
Marijuana Abuse: 1,429
Heroin Abuse: 99
Other Opiate Abuse: 841
PCP Abuse: 2
Hallucinogen Abuse: 14
Amphetamine Abuse: 498
Other Stimulant Abuse: 5
Tranquilzer Abuse: 17
Sedative Abuse: 8
Inhalant Abuse: 19
Other / Unknown: 20

Reference: http://wwwdasis.samhsa.gov/webt/quicklink/MT10.htm