| Chairman | 2013 – 2016 |
| Board of Directors | 2004 – 2007 |
| Chairman | 2007 – 2009 |
| Board of Directors | 1999 – 2003 |
| Chairman | 2010 – 2012 |
| Chairman | 2012 – 2013 |
| Board of Directors | 2004 – 2007 |
| Chairman | 2021 – 2025 |
| Board of Directors | 1999 – 2001 |
| Board of Directors | 2001 – 2003 |
| Board of Directors | 2001 – 2004 |
| Board of Directors | 1997 – 2003 |
| Board of Directors | 1997 – 1997 |
| Board of Directors | 1999 – 1999 |
| Chairman | 2019 – 2021 |
| Board of Directors | 2016 – 2025 |
| Board of Directors | 1997 – 1999 |
| Board of Directors | 2013 – 2018 |
| Board of Directors | 1997 – 1999 |
| Board of Directors | 1997 – 1999 |
| Board of Directors | 1999 – 2001 |
| Board of Directors | 2010 – 2014 |
| Board of Directors | 2004 – 2007 |
| Board of Directors | 1997 – 2004 |
| Board of Directors | 2003 – 2003 |
| Board of Directors | 2009 – 2010 |
| Chairman | 2009 – 2010 |
| Board of Directors | 2003 – 2003 |
| Board of Directors | 2004 – 2009 |