Regional and state unemployment rates were nearly all higher in March. Forty-six states recorded over-the-month unemployment rate increases, North Dakota and the District of Columbia registered rate decreases, and 3 states had no change in their rate, the Bureau of Labor Statistics of the U.S. Department of Labor reported. Over the year, jobless rates were up in all 50 states and the District of Columbia. The national unemployment rate rose from 8.1 percent in February to 8.5 percent in March, which was 3.4 percent-age points higher than in March 2008.