| Current (3) |
| Board of Directors | 2024 |
| Board of Directors | 2021 |
| Chairman | 2025 |
| Former (17) |
| Board of Directors | 1998 – 2000 |
| Board of Directors | 1997 – 1998 |
| Board of Directors | 2000 – 2016 |
| Board of Directors | 2016 – 2018 |
| Board of Directors | 1998 – 2000 |
| Board of Directors | 2000 – 2005 |
| Chairman | 1998 – 1999 |
| Chairman | 2012 – 2016 |
| Chairman | 2009 – 2012 |
| Chairman | 2005 – 2007 |
| Board of Directors | 2005 – 2007 |
| Board of Directors | 2021 – 2024 |
| Chairman | 1997 – 1998 |
| Board of Directors | 2018 – 2021 |
| Board of Directors | 2016 – 2021 |
| Board of Directors | 1997 – 2005 |
| Chairman | 2007 – 2009 |