"In 2011, there were 719,000 persons aged 12 or older who had used inhalants for the first time within the past 12 months, which was lower than the numbers in prior years from 2002 to 2005 (ranging from 849,000 to 877,000). An estimated 67.1 percent of past year initiates of inhalants in 2011 were under age 18 when they first used. The average age at first use among recent initiates aged 12 to 49 was similar in 2010 and 2011 (16.3 and 16.4 years, respectively)."
Substance Abuse and Mental Health Services Administration, Results from the 2011 National Survey on Drug Use and Health: Summary of National Findings, NSDUH Series H-44, HHS Publication No. (SMA) 12-4713. Rockville, MD: Substance Abuse and Mental Health Services Administration, 2012, p. 58.