| Board of Directors | 1985 – 2004 |
| Board of Directors | 2020 – 2021 |
| Board of Directors | 2002 – 2004 |
| Board of Directors | 2006 – 2009 |
| Board of Directors | 1985 – 2002 |
| Board of Directors | 1985 – 1999 |
| Board of Directors | 2006 – 2009 |
| Board of Directors | 2009 – 2021 |
| Board of Directors | 1985 – 2005 |
| Chairman | 2005 – 2021 |
| Board of Directors | 2012 – 2015 |
| Chairman | 2005 – 2005 |
| Board of Directors | 2015 – 2020 |
| Board of Directors | 2005 – 2005 |
| Chairman | 1985 – 1993 |
| Board of Directors | 2005 – 2006 |
| Board of Directors | 2004 – 2005 |
| Board of Directors | 2005 – 2012 |
