| Former (30) |
| Chairman | 1996 – 1998 |
| Deputy Chairman | 2024 – 2025 |
| Board of Directors | 2015 – 2019 |
| Board of Directors | 2002 – 2005 |
| Board of Directors | 2011 – 2015 |
| Board of Directors | 1989 – 1989 |
| Chairman | 2010 – 2011 |
| Board of Directors | 1998 – 2001 |
| Board of Directors | 1989 – 1997 |
| Deputy Chairman | 2023 – 2024 |
| Board of Directors | 1998 – 2001 |
| Board of Directors | 2017 – 2021 |
| Board of Directors | 2005 – 2010 |
| Board of Directors | 2001 – 2002 |
| Board of Directors | 2001 – 2004 |
| Chairman | 2024 – 2025 |
| Board of Directors | 1989 – 1998 |
| Board of Directors | 1989 – 1993 |
| Board of Directors | 1998 – 2001 |
| Board of Directors | 2001 – 2001 |
| Board of Directors | 1989 – 1998 |
| Board of Directors | 2001 – 2004 |
| Chairman | 2019 – 2021 |
| Board of Directors | 2001 – 2002 |
| Chairman | 2025 – 2025 |
| Board of Directors | 2025 – 2025 |
| Chairman | 1989 – 1989 |
| Board of Directors | 1989 – 1998 |
| Board of Directors | 2005 – 2019 |
| Board of Directors | 2002 – 2005 |