1971
1975
1987
1976
1997
1983
1971
1995
1974
1969
1989
1999
1970
1986
1973
1993
1994
1981
1959
1991
1990
1964
1967
1972
1974
1990
1980
1971
1995
1997
1984
1993
1961
1981
1970
1984
1971
1982
1975
1971
1978
1999
1972
1979
1999
1980
1967
1959
1968
1959
Comments