1967 1969 1970 1973 1977 1979 1980 1981 1982 1986 1989 1991 1991 1991 1995 1997 1997 1998 2000 2000 2001 2002 2006 2007 2009 2009 2011 2012 2012—2018 2013 2013 2015 2016 2017 2018 2019 2019 2020 2020 2020 