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Marijuana

Brief Description

Marijuana refers to the dried leaves, flowers, stems, and seeds from the hemp plant, Cannabis sativa. The plant contains the mind-altering chemical delta-9-tetrahydrocannabinol (THC) and other related compounds. Extracts with high amounts of THC can also be made from the cannabis plant. Learn more about marijuana

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Statistics and Trends

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Monitoring the Future Study: Trends in Prevalence of Marijuana/ Hashish for 8th Graders, 10th Graders, and 12th Graders; 2015 (in percent)*
Drug Time Period 8th Graders 10th Graders 12th Graders
Marijuana/ Hashish Lifetime 15.50 [31.10] 44.70
Past Year 11.80 25.40 34.90
Past Month 6.50 14.80 21.30
Daily 1.10 3.00 6.00

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National Survey on Drug Use and Health: Trends in Prevalence of Marijuana/ Hashish for Ages 12 or Older, Ages 12 to 17, Ages 18 to 25, and Ages 26 or Older; 2015 (in percent)*
Drug Time Period Ages 12 or Older Ages 12 to 17 Ages 18 to 25 Ages 26 or Older
Marijuana/ Hashish Lifetime 44.00 15.70 52.70 46.00
Past Year 13.50 12.60 32.20 10.40
Past Month 8.30 7.00 19.80 6.50

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This page was last updated February 2016

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