This graph illustrates the complete idiocy of our drug policy. While there has been a slight increase in the amount of people smoking pot, arrests have skyrocketed.
America has more people in prison (about 2.1 million) than any other nation including China that has about 5 times as many people. About 25% of people in jail in America are imprisoned for non-violent drug offenses. The racial disparity is enormous in drug sentencing as well. The Sentencing Project reports that while blacks constitute 14 percent of regular drug users in the US, they make up 37 percent of those arrested for drug offenses and 56 percent of those held in state prison for drugs.