The American Trucking Associations' advanced seasonally adjusted For-Hire Truck Tonnage Index jumped 4.1 percent in December 2007, after rising 0.9 percent in November. The latest increase was the largest month-to-month gain since a 6.2 percent jump in December 2006. The not seasonally adjusted index fell 8.2 percent from November to 102.7.
On a seasonally adjusted basis, the index jumped to 116.7 (2000 = 100) in December, its highest level since January 2006. Tonnage was also up 1.4 percent from a year earlier, marking the first sequential year-over-year increases since May and June 2006. Despite these increases, the tonnage index declined 1.4 percent in 2007 after a 1.7 percent drop in 2006.