| Current (2) |
| Chairman | 2025 |
| Board of Directors | 2026 |
| Former (15) |
| Board of Directors | 2020 – 2024 |
| Chairman | 2003 – 2004 |
| Chairman | 2004 – 2005 |
| Board of Directors | 2006 – 2020 |
| Board of Directors | 2024 – 2026 |
| Chairman | 2005 – 2010 |
| Chairman | 2010 – 2013 |
| Board of Directors | 1999 – 2006 |
| Board of Directors | 1995 – 1999 |
| Chairman | 1999 – 1999 |
| Chairman | 1999 – 2003 |
| Chairman | 2019 – 2025 |
| Chairman | 2013 – 2016 |
| Chairman | 1995 – 1999 |
| Chairman | 2016 – 2019 |