U.S. traffic deaths rose 7.7 percent in 2015 over the previous year to 35,200, the highest number of people killed on U.S. roads since 2008, the government's preliminary estimate reviewed by Reuters shows.
The report was compiled by the U.S. National Highway Traffic Safety Administration (NHTSA) and submitted to Congress. It shows the percentage increase in traffic deaths in 2015 was the highest annual jump since 1966. U.S. officials cite an increase in vehicle miles traveled, lower gas prices and an improving economy as part of the reason for the increase.
... and probably also text-and-driving, as one of the rising causes.