| Current (2) |
| Chairman | 2024 |
| Board of Directors | 2024 |
| Former (31) |
| Board of Directors | 1958 – 1988 |
| Board of Directors | 2012 – 2013 |
| Board of Directors | 1996 – 1999 |
| Deputy Chairman | 2008 – 2012 |
| Chairman | 2012 – 2013 |
| Chairman | 2024 – 2024 |
| Chairman | 2017 – 2024 |
| Chairman | 1958 – 1995 |
| Board of Directors | 2020 – 2024 |
| Chairman | 2014 – 2016 |
| Board of Directors | 2000 – 2004 |
| Board of Directors | 2003 – 2004 |
| Board of Directors | 1996 – 1997 |
| Chairman | 2016 – 2017 |
| Board of Directors | 1995 – 1999 |
| Board of Directors | 1958 – 1989 |
| Board of Directors | 1999 – 2003 |
| Chairman | 1996 – 2004 |
| Board of Directors | 1958 – 1991 |
| Board of Directors | 1958 – 1992 |
| Chairman | 2004 – 2005 |
| Chairman | 2012 – 2012 |
| Board of Directors | 2000 – 2001 |
| Board of Directors | 2005 – 2012 |
| Chairman | 2008 – 2012 |
| Board of Directors | 2001 – 2004 |
| Board of Directors | 2004 – 2005 |
| Board of Directors | 1958 – 1995 |
| Board of Directors | 1958 – 1987 |
| Board of Directors | 1958 – 1995 |
| Board of Directors | 1958 – 1996 |