A heck of a lot more Americans were toking up in 2012-13 than 10 years before — and not for medical reasons, either — according to a new study.
The percentage of American adults who had used marijuana within the last year was 9.5%, the study found. That compared to 4.1% in 2001-02.
The study — published this week in Jama Psychiatry, a monthly journal published by the American Medical Association — was sponsored by the National Institute on Alcohol Abuse and Alcoholism. It was based on in-person interviews with more than 36,000 Americans over the age of 18.