| Board of Directors | 2011 – 2013 |
| Board of Directors | 2006 – 2011 |
| Board of Directors | 2004 – 2006 |
| Board of Directors | 2013 – 2020 |
| Board of Directors | 1999 – 2008 |
| Board of Directors | 2004 – 2009 |
| Board of Directors | 2009 – 2016 |
| Board of Directors | 2013 – 2015 |
| Board of Directors | 1998 – 1999 |
| Board of Directors | 2008 – 2011 |
| Chairman | 2013 – 2020 |
| Board of Directors | 2004 – 2006 |
| Board of Directors | 2006 – 2020 |
| Board of Directors | 2009 – 2013 |
| Board of Directors | 2016 – 2020 |
| Board of Directors | 2002 – 2004 |