| Current (2) |
| Chairman | 2022 |
| Board of Directors | 2024 |
| Former (32) |
| Chairman | 2002 – 2003 |
| Board of Directors | 1989 – 1994 |
| Board of Directors | 1989 – 1995 |
| Chairman | 1997 – 2001 |
| Board of Directors | 2001 – 2002 |
| Board of Directors | 1997 – 2002 |
| Board of Directors | 1999 – 2001 |
| Deputy Chairman | 2016 – 2020 |
| Board of Directors | 1989 – 1997 |
| Board of Directors | 2002 – 2003 |
| Board of Directors | 2011 – 2015 |
| Board of Directors | 2009 – 2011 |
| Chairman | 2016 – 2020 |
| Board of Directors | 2010 – 2020 |
| Board of Directors | 2003 – 2011 |
| Board of Directors | 2023 – 2024 |
| Board of Directors | 1999 – 2003 |
| Board of Directors | 1997 – 1999 |
| Board of Directors | 2011 – 2015 |
| Board of Directors | 2009 – 2022 |
| Board of Directors | 1989 – 1997 |
| Board of Directors | 2005 – 2009 |
| Board of Directors | 2003 – 2005 |
| Board of Directors | 1997 – 1999 |
| Board of Directors | 2004 – 2005 |
| Board of Directors | 2003 – 2005 |
| Board of Directors | 2021 – 2022 |
| Chairman | 2021 – 2022 |
| Board of Directors | 1989 – 1997 |
| Board of Directors | 1989 – 1997 |
| Chairman | 2003 – 2005 |
| Board of Directors | 1989 – 1997 |
