| 1966 | 1993 11 | 1983 | | 1983 9 1995 10 | | 1995 10 1997 3 | | 1997 3 2002 12 | | 2002 12 2003 9 | | | 2003 9 2005 3 | | 2005 3 2007 12 | | 2007 12 2013 1 | | 2013 1 2015 8 | | | 2015 8 | | |