| Current (3) |
| Board of Directors | 2025 |
| Chairman | 2026 |
| Board of Directors | 2024 |
| Former (42) |
| Board of Directors | 1989 – 1992 |
| Board of Directors | 1989 – 1995 |
| Deputy Chairman | 2004 – 2006 |
| Deputy Chairman | 2008 – 2013 |
| Board of Directors | 2020 – 2021 |
| Board of Directors | 1989 – 1992 |
| Board of Directors | 1999 – 2000 |
| Board of Directors | 1989 – 1997 |
| Board of Directors | 1989 – 1989 |
| Board of Directors | 2001 – 2002 |
| Chairman | 2013 – 2020 |
| Board of Directors | 1998 – 2002 |
| Deputy Chairman | 2007 – 2008 |
| Board of Directors | 1989 – 2002 |
| Board of Directors | 1989 – 1990 |
| Board of Directors | 1989 – 2001 |
| Board of Directors | 1989 – 1996 |
| Board of Directors | 1989 – 1989 |
| Board of Directors | 2013 – 2020 |
| Chairman | 1989 – 1999 |
| Board of Directors | 2000 – 2002 |
| Chairman | 2006 – 2008 |
| Deputy Chairman | 1999 – 2004 |
| Board of Directors | 1989 – 1990 |
| Chairman | 2004 – 2006 |
| Chairman | 1999 – 2002 |
| Chairman | 2009 – 2013 |
| Board of Directors | 1999 – 2002 |
| Deputy Chairman | 2006 – 2007 |
| Chairman | 2023 – 2024 |
| Board of Directors | 1989 – 1992 |
| Chairman | 2000 – 2002 |
| Deputy Chairman | 2013 – 2015 |
| Board of Directors | 2013 – 2013 |
| Board of Directors | 2015 – 2018 |
| Board of Directors | 1989 – 1994 |
| Chairman | 2021 – 2023 |
| Chairman | 1989 – 1989 |
| Board of Directors | 2021 – 2021 |
| Board of Directors | 1989 – 1999 |
| Board of Directors | 2002 – 2002 |
| Chairman | 2024 – 2026 |