Year	Number
1961	60
1962	70
1963	90
1964	110.00000000000001
1965	130
1966	150
1967	180
1968	200
1969	229.99999999999997
1970	250
1971	280
1972	300
1973	330
1974	175
1975	190
1976	200
1977	225
1978	500
1979	275
1980	150
1981	136
1982	113.33333333333333
1983	107.14285714285714
1984	102.49999999999999
1985	102.49999999999999
1986	66.25
1987	58.88888888888889
1988	60
1989	80
1990	84
1991	87.77777777777777
1992	55.833333333333336
1993	53.07692307692308
1994	53.07692307692308
1995	53.07692307692308
1996	46.15384615384615
1997	54.61538461538461
1998	57.692307692307686
1999	61.53846153846154
2000	63.07692307692307
2001	61.65413533834586
2002	71.30434782608695
2003	70.6896551724138
2004	51.724137931034484
2005	62.93103448275862