In 2012,500,000 people older than 12 years of age admitted that they had used inhalants.

Inhalants

Substances that are sniffed or inhaled to achieve a quick high, often household or industrial chemicals.

Admitted

The act of conceding or acknowledging something, often used in the context of accepting individuals into medical or rehabilitative facilities.

Older

A term generally referring to individuals or things of greater age, often associated with increased wisdom or experience.