The unemployment rate of western states is 4.9%, for eastern states it is 6.2%, for southern states it is 4.6%, and for Midwestern states it is 6%. The western states comprise 12% of the labor force, the eastern states comprise 17% of the labor force, the southern states comprise 26% of the labor force, and the midwestern states comprise the remainder of the labor force. Find the unemployment rate for the nation. (please round your answer to 2 decimal places)