| Former (17) |
| Chairman | 2011 – 2012 |
| Board of Directors | 1998 – 1998 |
| Board of Directors | 1998 – 2000 |
| Board of Directors | 2018 – 2026 |
| Board of Directors | 1998 – 1998 |
| Board of Directors | 1998 – 2000 |
| Board of Directors | 2008 – 2011 |
| Chairman | 2023 – 2024 |
| Chairman | 2008 – 2011 |
| Chairman | 2019 – 2023 |
| Board of Directors | 2006 – 2008 |
| Board of Directors | 2000 – 2008 |
| Board of Directors | 2011 – 2018 |
| Board of Directors | 1998 – 1998 |
| Board of Directors | 1998 – 1998 |
| Chairman | 2024 – 2026 |
| Chairman | 2012 – 2019 |