12/31/1955	684
12/31/1956	722
12/31/1957	761
12/31/1958	812
12/31/1959	850
12/31/1960	876
12/31/1961	910.46
12/31/1962	944.08
12/31/1963	1018.87
12/31/1964	1051.14
12/31/1965	1137.10
12/31/1966	1209.12
12/31/1967	1317.62
12/31/1968	1413.24
12/31/1969	1476.41
12/31/1970	1598.08
12/31/1971	1849.46
12/31/1972	2021.54
12/31/1973	2235.84
12/31/1974	2508.50
12/31/1975	2807.07
12/31/1976	3104.02
12/31/1977	3150.78
12/31/1978	3412.21
12/31/1979	3806.14
12/31/1980	4387.85
12/31/1981	4592.45
12/31/1982	4993.94
12/31/1983	5122.75
12/31/1984	5049.13
12/31/1985	5055.05
12/31/1986	5508.43
12/31/1987	5732.37
12/31/1988	5734.48
12/31/1989	5932.58
12/31/1990	6055.61
12/31/1991	6222.06
12/31/1992	6294.84
12/31/1993	6477.95
12/31/1994	6530.35
12/31/1995	6558.16
12/31/1996	6549.61
12/31/1997	6731.00
12/31/1998	6845.59
12/31/1999	6816.70
12/31/2000	7447.99
12/31/2001	7399.07
12/31/2002	7644.64
12/31/2003	7788.80
12/31/2004	8228.39
12/31/2005	8462.45
12/31/2006	9108.66