According to a new study an increase in the number of people who say they have tried marijuana has ticked up to 49%, the highest measured to date by Gallup. 50 years ago, just 4% said they had tried the drug, but that percentage surpassed 20% in 1977, 30% in 1985 and 40% in 2015.
What do the numbers mean? WEDNESDAY 60 MINUTE POLL