Year	Number
1961	308.8527789244568
1962	341.1593445560076
1963	421.44314598404753
1964	448.0366105698258
1965	466.4583716228634
1966	480.9029048071999
1967	501.38564760793463
1968	522.7496266074096
1969	581.2751292360712
1970	602.3628167262552
1971	626.7873232263877
1972	669.9963454744792
1973	698.6971353417451
1974	715.6293448924512
1975	725.9972265274492
1976	779.8854543238962
1977	814.5207971553791
1978	833.9902908593003
1979	850.1771202333819
1980	894.89235964542
1981	926.5949759850384
1982	976.470082161139
1983	1012.3734533183352
1984	1004.4984059047036
1985	995.6919289607878
1986	986.9003363427156
1987	960.8634608634608
1988	957.0868945868947
1989	935.9932764188084
1990	916.5322402926528
1991	892.7251380614862
1992	887.3227105585713
1993	879.1703287045175
1994	858.3728312388573
1995	908.6634009797061
1996	894.7913723273995
1997	870.3424915318028
1998	831.4876338132151
1999	805.1995774195029
2000	778.9452036012979
2001	779.6471070988921
2002	781.8239535621967
2003	782.816875959888
2004	783.5367226550187
2005	783.5099485803712