| Chairman | 2016 – 2017 |
| Chairman | 2006 – 2008 |
| Board of Directors | 2013 – 2014 |
| Board of Directors | 2000 – 2014 |
| Board of Directors | 2000 – 2017 |
| Chairman | 2008 – 2013 |
| Board of Directors | 2000 – 2013 |
| Chairman | 2014 – 2016 |
| Board of Directors | 2000 – 2006 |
| Chairman | 2013 – 2014 |
| Board of Directors | 2000 – 2006 |
| Board of Directors | 2000 – 2014 |
| Board of Directors | 2006 – 2011 |
| Chairman | 2017 – 2026 |
| Board of Directors | 2004 – 2014 |
| Board of Directors | 2011 – 2012 |
| Board of Directors | 2017 – 2026 |
| Board of Directors | 2005 – 2008 |