In the state of Louisiana there was a total of 26,334 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: 3,584
Alcohol and Drug Abuse: 4,132
Cocaine Abuse (Smoked): 2,859
Cocaine Abuse (Other Route): 939
Marijuana Abuse: 6,022
Heroin Abuse: 1,886
Other Opiate Abuse: 3,324
PCP Abuse: 29
Hallucinogen Abuse: 26
Amphetamine Abuse: 828
Other Stimulant Abuse: 10
Tranquilzer Abuse: 484
Sedative Abuse: 209
Inhalant Abuse: 8
Other / Unknown: 1,994

Reference: http://wwwdasis.samhsa.gov/webt/quicklink/LA10.htm