1988
1985
1981
1968
1989
1989
1973
1990
1974
1990
1991
1969
1980
1988
1982
1986
1987
1968
1993
1980
1978
1988
1980
1986
1990
1990
1990
1963
1991
1992
1991
1995
1995
1999
1982
1992
1975
1994
1994
1991
1992
1993
1993
1972
1979
1980
1977
1978
1983
1981
1980
1976
1991
1979
1988
1980
1977
1982
1982
1984
1991
1979
1991
1980
1962
1976
1990
1985
1983
1973
1980
1992
1976
1990
1988
1990
1980
1989
1981
1987
1972
1990
Comments