| Chairman | 2005 – 2006 |
| Board of Directors | 1989 – 1990 |
| Board of Directors | 1989 – 2004 |
| Board of Directors | 1989 – 1994 |
| Board of Directors | 1989 – 2005 |
| Board of Directors | 1994 – 2004 |
| Board of Directors | 2006 – 2008 |
| Board of Directors | 2004 – 2005 |
| Chairman | 2006 – 2008 |
| Board of Directors | 1989 – 2005 |
| Chairman | 1989 – 1990 |
| Board of Directors | 2004 – 2005 |
| Board of Directors | 1989 – 2004 |
| Board of Directors | 2005 – 2006 |
| Board of Directors | 2004 – 2006 |
| Board of Directors | 1989 – 1990 |
| Board of Directors | 1989 – 2008 |