Cocaine in its purest form is a white, pearly product.
Although none of the four regions experienced statistically significant differences between 2008 and 2009 in the rate of current illicit drug use among persons aged 12 or older, there were some significant differences for specific drugs by region. For example, marijuana use among persons in the Northeast increased from 6.2 percent in 2008 to 7.5 percent in 2009, and nonmedical use of prescription psychotherapeutics increased from 2.4 to 2.9 percent among persons in the South.
Rates of SMI in 2008 were highest for adults aged 18 to 25 (7.4 percent) and lowest for adults aged 50 or older (2.3 percent).
In 2008, an estimated 20.1 million Americans aged 12 or older were current (past month) illicit drug users, meaning they had used an illicit drug during the month prior to the survey interview. This estimate represents 8.0 percent of the population aged 12 years old or older. Illicit drugs include marijuana/hashish, cocaine (including crack), heroin, hallucinogens, inhalants, or prescription-type psychotherapeutics used nonmedically.