han 5 million Americans smoke marijuana at least once a week.
             · Among teens aged 12 to 17, the average age of first trying marijuana was 13.5
             A yearly survey of students in grades 8 through 12 shows that by 10th grade,
             nearly 16 percent are "current" users (that is, used within the past month). Among
             12th-graders, nearly 40 percent have tried marijuana/hash at least once, and 19 percent
             Other researchers have found that use of marijuana and other drugs usually peaks
             in the late teens and early twenties, then goes down in later years.
             There are stronger forms of marijuana available today than there were in the 1960s.
             The strength of the drug is measured by the amount of average THC in test samples
             confiscated by law enforcement agencies.
             Sinsemilla (sin-seh-me-yah; it's a Spanish word), hash
             ...