A report issued by U.K. road safety charity IAM says young drivers under age 20 are 15 percent more likely to crash than older drivers because of mistakes at the wheel or reacting badly to risks on the road. Contributing factors in crashes by younger drivers include loss of control, traveling too fast for road conditions, exceeding the speed limit, and sudden braking. Alcohol was a factor in 4.6 percent of crashes for the 17-24 age group compared to three percent for the 25-69 age groups. Young car drivers made up 27 percent of all car driver fatalities, and more than 2000 were killed or seriously injured in 2009.