| Former (20) |
| Board of Directors | 2007 – 2009 |
| Chairman | 1996 – 2004 |
| Board of Directors | 2013 – 2016 |
| Board of Directors | 1996 – 2007 |
| Board of Directors | 2009 – 2011 |
| Chairman | 2013 – 2022 |
| Board of Directors | 2025 – 2025 |
| Board of Directors | 2008 – 2012 |
| Deputy Chairman | 2000 – 2004 |
| Board of Directors | 2011 – 2015 |
| Board of Directors | 2004 – 2010 |
| Board of Directors | 1996 – 2000 |
| Board of Directors | 2009 – 2009 |
| Chairman | 2022 – 2023 |
| Board of Directors | 1996 – 2009 |
| Board of Directors | 1996 – 2004 |
| Board of Directors | 2007 – 2010 |
| Deputy Chairman | 2022 – 2024 |
| Board of Directors | 2009 – 2024 |
| Board of Directors | 2004 – 2005 |
