In the state of Massachusetts there was a total of 87,754 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: 21,624
Alcohol and Drug Abuse: 11,921
Cocaine Abuse (Smoked): 2,269
Cocaine Abuse (Other Route): 1,623
Marijuana Abuse: 3,840
Heroin Abuse: 35,593
Other Opiate Abuse: 5,658
PCP Abuse: 37
Hallucinogen Abuse: 22
Amphetamine Abuse: 125
Other Stimulant Abuse: 15
Tranquilzer Abuse: 1,155
Sedative Abuse: 26
Inhalant Abuse: 10
Other / Unknown: 3,836

Reference: http://wwwdasis.samhsa.gov/webt/quicklink/MA10.htm