The latest Bureau of Labor numbers reflect some good news for workers in the Portland area. Jobless rates were lower in May than a year earlier in most of the metropolitan areas. According to the Bureau of Labor statistics, in the 49 metropolitan areas the highest unemployment rates in may were registered in the Riverside-San Bernardino, California area at 13.2%. The lowest jobless rate was recorded in Oklahoma City, at 4.9%. Las Vegas experienced the largest unemployment rate decrease from May 2010, down 2.5 percentage points, followed by Detroit, and the greater Portland-area was down almost 2% year over year.