RALEIGH, North Carolina, Dec. 30 -- The North Carolina Department of Commerce issued the following news release: Unemployment rates (not seasonally adjusted) decreased in 92 of North Carolina's counties in November, increased in four, and remained unchanged in four. Edgecombe County had the highest unemployment rate at 7.3 percent while Buncombe and Orange Counties each had the lowest at 3.0 percent. All fifteen of the state's metro areas experienced rate decreases. Among the metro areas, Rocky  more