| | | | | | | 1969 11 | | 1991 9 1999 9 | | 1991 9 1998 1 | | 1998 1 1999 11 | | | 1999 11 2004 7 | | | 2004 7 2009 11 | | | 2009 11 2011 6 | | | 2011 6 2016 8 | | | 2016 8 | | | |