| Current (3) |
| Board of Directors | 2025 |
| Chairman | 2025 |
| Board of Directors | 2021 |
| Former (23) |
| Deputy Chairman | 1996 – 1998 |
| Board of Directors | 2004 – 2009 |
| Board of Directors | 2004 – 2004 |
| Board of Directors | 1998 – 2002 |
| Chairman | 2002 – 2004 |
| Board of Directors | 1996 – 1997 |
| Chairman | 2004 – 2009 |
| Chairman | 2002 – 2002 |
| Chairman | 2009 – 2014 |
| Chairman | 2014 – 2015 |
| Board of Directors | 1984 – 1996 |
| Board of Directors | 2002 – 2002 |
| Chairman | 2015 – 2020 |
| Board of Directors | 2022 – 2025 |
| Board of Directors | 1984 – 1996 |
| Chairman | 2004 – 2004 |
| Board of Directors | 1984 – 1996 |
| Chairman | 2022 – 2025 |
| Chairman | 2021 – 2022 |
| Board of Directors | 2011 – 2012 |
| Chairman | 2020 – 2021 |
| Board of Directors | 1997 – 1999 |
| Board of Directors | 2002 – 2002 |