Fatal motor vehicle accidents are the number one killer for U.S. teens, according to new data from the Centers for Disease Control and Prevention. Each day, seven teens between ages 16 to 19 die in a fatal car crash. But risk for a fatal car crash in some states appears higher than in others. Erie Insurance worked with the Insurance Institute for Highway Safety to analyze data from the U.S. Department of Transportation to find out how states compare in crash rates when teens are behind the wheel. Where does your state stack up in road safety? Keep clicking to find the least safe states for teens, followed by the safest.