| | | | | 1965 9 | 1985 1 | 1986 8 | 1986 8 1988 2 | | | 1988 2 1990 12 | | 1990 12 1991 12 | | 1991 12 1993 4 | | 1993 4 1997 12 | | 1997 12 1999 10 | | 1999 10 2000 11 | | 2000 11 2002 5 | | 2002 5 2003 11 | | 2003 11 2005 7 | | 2005 7 2007 3 | | 2007 3 2011 12 | | 2011 12 2013 4 | | 2013 4 2013 12 | | | 2013 12 2017 1 | | | 2017 1 2020 6 | | | 2020 6 | | | |