Unemployment rates were higher in May than a year earlier in 222 of the 372 metropolitan areas, lower in 141 areas, and unchanged in 9 areas, the U.S. Bureau of Labor Statistics reported. Thirteen areas recorded jobless rates of at least 15.0 percent, while 9 areas registered rates below 5.0 percent. The national unemployment rate in May was 9.3 percent, not seasonally adjusted, compared with 9.1 percent a year earlier.