Over the last 10 years, the number of trucker deaths has increased from 648 in 1995 to 803 last year, a 20 percent increase, according to the National Highway Transportation Safety Administration. The American Trucking Association says seat belts are part of the problem, according to a report on KHOU.com in Houston. While more than 80 percent of car drivers buckle up, only about 50 percent of truck drivers do.