| Former (21) |
| Board of Directors | 2011 – 2012 |
| Deputy Chairman | 2007 – 2010 |
| Deputy Chairman | 2000 – 2001 |
| Chairman | 2023 – 2026 |
| Board of Directors | 2010 – 2011 |
| Board of Directors | 2023 – 2026 |
| Deputy Chairman | 2006 – 2007 |
| Board of Directors | 2001 – 2002 |
| Board of Directors | 1998 – 2007 |
| Deputy Chairman | 2001 – 2006 |
| Board of Directors | 2002 – 2010 |
| Chairman | 2012 – 2018 |
| Chairman | 2010 – 2012 |
| Board of Directors | 2008 – 2012 |
| Chairman | 2018 – 2023 |
| Board of Directors | 2012 – 2014 |
| Board of Directors | 1998 – 1999 |
| Board of Directors | 2008 – 2012 |
| Chairman | 2000 – 2008 |
| Chairman | 1998 – 2000 |
| Board of Directors | 2010 – 2012 |