Although the most common reason for admission to addiction treatment facilities remains alcohol abuse and dependence, the percentage for this has declined over the last ten years while those for abuse of prescription pain medications have increased remarkably over this same time period. In 1997, the treatment admissions for prescription pain medication abuse was 1 out of 100 but now it constitutes 5% of all admissions to drug treatment facilities according to the Substance Abuse and Mental Health Services Administration (SAMHSA). Recent data from 2007 reveals that although alcohol-related admissions still represent the highest percentage (40%) of the nearly 2 million admissions to addiction treatment facilities in the U.S., this reflects a decrease of 10% from 1997. Some other findings include: The relative share of admissions for addiction treatment for heroin abuse has remained unchanged in the last ten years, accounting for 14% of all admissions. The percentage of admissions for methamphetamine and amphetamine abuse is relatively small accounting for 4% of all admissions in 1997, rising to 9% in 2005, and declining to 8% in 2006 and remaining unchanged for 2007. Although the relative percentage of admissions for cannabis abuse jumped from 12% in 1997 to 16% in 2003, the numbers have remained unchanged since then.