1974
1972
1973
1977
1972
1973
1973
1993
1977
1981
1978
1976
1977
1977
1977
1974
1972
1976
1975
1972
1974
1975
1979
1969
1977
1976
1973
1976
1990
1989
1990
1979
1982
1992
1974
2017
1995
1978
1976
1976
1991
1977
1977
1990
1987
1995
1991
1976
1974
1988
1989
1990
1977
1978
1986
1991
1987
1995
1993
1991
1978
1988
1976
2012
1972
1974
1985
1977
1968
1990
1991
1977
1991
1972
1985
1991
1990
1997
Comments