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Year
1970
66
1971
70
1972
66
1973
62
1974
74
1975
66
1976
88
1977
44
1978
80
1979
62
1980
80
1981
66
1982
66
1983
40
1984
62
1985
70
1986
72
1987
46
1988
22
1989
50
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