A study by the Adolescents Clinic at the National Children's Hospital conducted among 3,373 high school students in the Greater Metropolitan Area indicates that the number of marijuana users increased from 1 percent in 1991 to 10 percent in 2006 and to 15 percent last year, reported the Social Security System, or Caja.
Two years after Costa Rica passed an aggressive national anti-smoking law, the number of illegal smokes seized by law enforcement has skyrocketed by 89 percent, according to figures from the Finance Ministry.