| Chairman | 1997 – 2008 |
| Chairman | 1992 – 1992 |
| Board of Directors | 1997 – 1999 |
| Board of Directors | 1992 – 1997 |
| Board of Directors | 1996 – 2011 |
| Board of Directors | 2009 – 2009 |
| Board of Directors | 2010 – 2011 |
| Board of Directors | 2010 – 2011 |
| Board of Directors | 1999 – 2005 |
| Board of Directors | 2000 – 2009 |
| Board of Directors | 1992 – 1996 |
| Board of Directors | 1992 – 1992 |
| Board of Directors | 1992 – 1997 |
| Board of Directors | 1992 – 1992 |
| Board of Directors | 1992 – 1993 |
| Board of Directors | 2008 – 2009 |