1968
1995
1969
1975
1978
1983
1983
1972
1980
1975
1977
1978
1976
1977
1982
2008
1978
2009
1972
1987
1986
2007
1999
1980
2010
1971
1980
1972
1979
1978
1984
1986
1977
1975
1972
1979
1992
1999
1986
1978
1983
1992
1974
1986
1975
1974
1974
1974
1973
1974
1971
1988
1972
1976
1979
1978
1976
1980
1983
1973
1986
1981
1975
1987
1978
1987
1975
1983
1986
1978
1976
1972
1994
1988
1974
1981
1983
1977
1973
1968
1976
1979
1993
1981
2000
1998
1985
1984
1986
1985
1993
1994
1980
1982
2012
1992
1973
1987
1988
1968
1986
1978
1977
1988
1979
1977
1985
1990
1970
1977
Comments