| | | | | | | | | | | | 1972 3 | | 1992 8 1996 | 10 | | | | 1989 9 — 1992 7 | | 1992 8 — 1996 6 | 1993 | 8 1996 2 | | 1996 6 — 1999 7 | | | 1999 7 — 2003 4 | | | 2003 4 — 2005 1 | | | 2005 1 — 2006 3 | | | 2006 3 — 2008 9 | | | 2008 9 — 2009 3 | | | 2009 3 — 2009 12 | | | 2009 12 — 2014 2 | | | 2014 2 — 2015 7 | | | 2015 7 — 2016 7 | | | 2016 7 | | |