Regional and state unemployment rates were generally little changed in December. Twenty states recorded unemployment rate increases, 15 states and the District of Columbia registered rate decreases, and 15 states had no rate change, the U.S. Bureau of Labor Statistics reported.Thirty-one states and the District of Columbia posted unemployment rate decreases from a year earlier, 16 states reported increases, and 3 states had no change. The national jobless rate fell by 0.4 percentage point between November and December to 9.4 percent, 0.5 point lower than in December 2009.