To determine premiums for automobile insurance, companies must have an understanding of the variables that affect whether a driver will have an accident. The age of the driver may top the list of variables. The following table lists the number of drivers in the United States, the number of fatal accidents, and the number of total accidents in each age group. Age Group Number of Drivers (1,000s) Accidents (1,000s) Fatal Accidents Under 20 9,983 3,418 6,293 20-24 17,003 3,226 5,657 25-34 33,909 7,161 10,138 35-44 41,190 7,115 10,559 45-54 38,361 5,561 8,124 55-64 25,784 2,900 4,947 65-74 15,562 1,673 2,518