The number of U.S. workers filing new claims for jobless benefits fell to the lowest level since January, but the seasonally adjusted data was distorted by an unusual pattern of layoffs in the automotive industry, according to Reuters. Economists watch the labor market closely for signs that the impact of the most severe recession in decades is fading, and worry that failure to curb unemployment that has spiked to 9.5 percent will thwart official efforts to stimulate growth. The Labor Department tries to anticipate seasonal changes in jobless claims, such as the auto industry usually closing plants in July to retool for the new model year. However, the bankruptcies of U.S. automakers has distorted the normal pattern of plant closings. Major U.S. stock indexes rose on the jobs data, but later turned mixed. U.S. government debt prices and the dollar were lower. A separate report on Thursday showed wholesale inventories declined again in May, but at a slower pace than in the previous month, keeping alive hopes for a rebound in stock-building that could aid growth in the remainder of 2009. Economists say large inventory liquidations will reduce economic growth in the second quarter, but lay the foundation for a recovery as firms replenish depleted stocks in anticipation that sales will pick up. However, weak June retail sales reports from a number of big stores on Thursday signaled that shoppers remain cautious. The state of the jobs market will be a crucial factor in determining what happens to consumer demand. The Labor Department said that initial claims for state unemployment insurance fell 52,000, the largest drop since December, to a much lower-than-expected seasonally adjusted 565,000 in the week ended July 4, from 617,000 the prior week. It was the lowest reading since January. Analysts polled by Reuters had forecast claims to drop to 605,000 from a previously reported 614,000.