1947	162
1948	175.025
1949	178.5
1950	192.225
1951	208.525
1952	219.525
1953	233.075
1954	240
1955	258.725
1956	271.675
1957	286.85
1958	296.175
1959	317.625
1960	331.725
1961	342.125
1962	363.3
1963	382.65
1964	411.4
1965	443.775
1966	480.875
1967	507.75
1968	558.05
1969	605.2
1970	648.475
1971	701.85
1972	770.6
1973	852.425
1974	933.425
1975	1034.375
1976	1151.925
1977	1278.6
1978	1428.525
1979	1592.175
1980	1757.125
1981	1941.05
1982	2077.25
1983	2290.55
1984	2503.275
1985	2720.3
1986	2899.75
1987	3100.225
1988	3353.6
1989	3598.475
1990	3839.95
1991	3986.075
1992	4235.25
1993	4477.9
1994	4743.3
1995	4975.775
1996	5256.825
1997	5547.4
1998	5879.5
1999	6282.45
2000	6739.375
2001	7055.05
2002	7350.75
2003	7709.875
2004	8214.3
2005	8745.75