1995
2006
2017
2012
1985
1999
1981
1983
1982
1999
1985
2006
2009
1998
1999
2016
1995
1981
2018
1981
2003
1980
1983
1983
2015
1983
1997
1985
2006
2002
2009
1982
2007
1993
1999
1987
2018
1988
2004
1999
1998
2007
1993
1998
1987
2007
1995
2000
1982
1999
1988
1998
2001
2000
1984
2016
1998
1995
1992
1999
1999
2000
2004
1988
1999
1982
1981
1981
1984
1981
1978
2012
1983
1980
1983
1983
1999
2002
1990
1993
1988
2002
1988
1998
1981
1987
2005
1987
1992
1990
1987
1981
1983
2008
1982
1981
2002
1998
2008
1981
1981
2008
1992
1982
1990
1987
1981
1981
1981
1980
1980
1993
1997
2000
1986
1981
1980
1985
2001
1981
1982
1982
1987
1994
1997
1990
1989
2008
1989
1986
1985
1980
2006
1986
1984
1987
1986
1993
1989
Comments