22. Refer to Exercise 5 (page 496) for a brief history of weighted voting in the Nassau County Board of Supervisors. Assume that the two Hempstead supervisors always agree, so that the board is effectively a five-voter system. Determine the Banzhaf power index of this system in each year. You should be able to do this by hand. If you would like to find the index for the full system each year, you may use the Power Index Calculator (see page 502).