Figure 4: Past month illicit drug use among
persons aged 12 or older, by drug – 1999, 2000, 2001.
Source:
Substance Abuse and Mental Health Services Administration (SAMHSA).
Results from the 2001 National Household Survey on Drug Abuse: Volume 1.
Summary of National Findings. National Household Survey on Drug
Abuse Series: H17. Rockville, MD, August 2002.
