| Current (2) |
| Chairman | 2024 |
| Board of Directors | 2025 |
| Former (15) |
| Chairman | 1996 – 1996 |
| Chairman | 2006 – 2007 |
| Chairman | 2007 – 2008 |
| Board of Directors | 2011 – 2011 |
| Chairman | 2004 – 2006 |
| Chairman | 1996 – 2000 |
| Chairman | 2008 – 2009 |
| Board of Directors | 2019 – 2025 |
| Chairman | 2009 – 2012 |
| Board of Directors | 2000 – 2012 |
| Chairman | 2012 – 2016 |
| Board of Directors | 2000 – 2001 |
| Chairman | 2001 – 2004 |
| Chairman | 2016 – 2024 |
| Board of Directors | 1996 – 1996 |