120
1965
119
20.4
1966
226
16.9
1967
187
13.4
1968
222
20.9
1969
182
22.2
1970
341
20.5
1971
523
17.5
1972
309
27.4
1973
270
18.2
1974
202
15.4
1975
333
11.2
1976
212
16.1
1977
404
12.4
1978
359
14.5
1979
354
14.5
1980
270
16.7
1981
242
20.0
1982
209
18.0
1983
208
18.0
1984
122
17.0
1985
190
14.6
1986
168
16.7
1987
248
14.0
1988
212
19.5
1989
206
17.4
1990
242
16.3
1991
173
16.5
1992
157
15.5
1993
172
15.8
1994
210
17.1
1995
194
17.1
1996
417
17.1
1997
501
16.6
1998
403
16.6
