Regional and state unemployment rates were slightly lower in May. Thirty-seven states and the District of Columbia recorded unemployment rate decreases over the month, 6 states had increases, and 7 states had no change, the U.S. Bureau of Labor Statistics reported. Thirty-one states and the District of Columbia posted unemployment rate increases from a year earlier, 17 states recorded decreases, and 2 states had no change. The national jobless rate edged down by 0.2 percentage point to 9.7 percent, but was up from 9.4 percent in May 2009.