Chances are, you know that cocaine comes from the coca plant, causes a whole lot of trouble south of the border, and results in lots of fast talking on subjects no one else cares about. But do you know what its five most common additives are? Or how much, on average, a crack rock will run you? Or which European country consumes the most cocaine? Didn’t think so. Educated yourself with the graphic after the jump, and pick up a few tidbits of cocktail party — er, make that coke party — chatter.