In the state of Michigan there was a total of 60,092 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: 14,241
Alcohol and Drug Abuse: 10,014
Cocaine Abuse (Smoked): 4,353
Cocaine Abuse (Other Route): 799
Marijuana Abuse: 10,628
Heroin Abuse: 10,466
Other Opiate Abuse: 7,887
PCP Abuse: 0
Hallucinogen Abuse: 25
Amphetamine Abuse: 750
Other Stimulant Abuse: 2
Tranquilzer Abuse: 460
Sedative Abuse: 219
Inhalant Abuse: 16
Other / Unknown: 232

Reference: http://wwwdasis.samhsa.gov/webt/quicklink/MI10.htm