In 2014, 44.1 million Americans reported using illicit drugs over the past year. One tragic result of the widespread use of drugs and alcohol is its impact on youth. In the United States alone, 7% of youth aged 12–13 took an illicit substance in the past year, while 5.6% reported drinking alcohol. Early use of drugs or alcohol has been linked to a several times greater risk of developing substance dependence, as the majority of Americans aged 18–30 admitted for substance abuse treatment initiated alcohol or drug use before the age of 18.

We compared data from the United States and European nations to find out just how many high school students are engaging in binge drinking and marijuana use. Read on to learn more about patterns of youth drinking and drug use around the globe.