"• The percentage of adolescents (i.e., youths aged 12 to 17) who used inhalants in the past year was lower in 2007 (3.9 percent) than in 2003, 2004, and 2005 (4.5, 4.6, and 4.5 percent, respectively)
"• Among adolescents who used inhalants for the first time in the past year (i.e., past year initiates), the rate of use of nitrous oxide or “whippits” declined between 2002 and 2007 among both genders (males: 40.2 to 20.2 percent; females: 22.3 to 12.2 percent)
"• In 2007, 17.2 percent of adolescents who initiated illicit drug use during the past year indicated that inhalants were the first drug that they used; this rate remained relatively stable between 2002 and 2007
(Note: "Inhalants" are defined as: "Aerosol sprays other than spray paint include products such as aerosol air fresheners, aerosol spray, and aerosol cleaning products (e.g., dusting sprays, furniture polish). The aerosol propellants in these products are commonly chlorofluorocarbons. By contrast, nitrous oxide is used as a propellant for whipped cream and is available in 2-inch tapered cylinders called “whippits” that are used to pressurize home whipped-cream charging bottles.")

Source

Substance Abuse and Mental Health Services Administration, Office of Applied Studies. (March 16, 2009). "The NSDUH Report: Trends in Adolescent Inhalant Use: 2002 to 2007." Rockville, MD, pp. 1 and 3.
http://oas.samhsa.gov/2k9/inh…