Same link, facts from January 23rd blog:

"Truck driver wages have remained the same for decades with no adjustment for inflation or other such economic factors. In fact, drivers were actually earning more money in 1980 than they are today in 2013."

"Yet the nation's truckers average an unskilled wage (Department of Labor classification) of .34 cens per mile, and they have seen their earnings fall by 40% during the past 33 years."