225
1967
163
3.77
1968
97.2
5.21
1969
154
4.84
1970
114
3.87
1971
311
4.40
1972
86.1
6.16
1973
188
5.99
1974
120
5.12
1975
216
6.16
1976
114
5.70
1977
120
3.42
1978
120
3.92
1979
75.7
4.04
1980
139
2.04
1981
117
5.12
1982
105
4.30
1983
139
4.40
1984
125
4.70
1985
162
2.92
1986
106
5.70
1987
102
5.12
1988
114
3.92
1989
111
4.54
1990
109
3.92
1991
116
5.12
1992
106
3.67
1993
93.5
4.83
1994
109
3.08
1995
131
4.41
1996
93.5
4.83
1997
124
3.08
1998
135
4.29
1999
102
1.83
2000
139
3.79
