| Board of Directors | 2003 – 2003 |
| Chairman | 1969 – 1992 |
| Board of Directors | 1997 – 2001 |
| Board of Directors | 1969 – 1988 |
| Board of Directors | 1969 – 1988 |
| Board of Directors | 2004 – 2005 |
| Chairman | 1969 – 2000 |
| Chairman | 2004 – 2005 |
| Board of Directors | 2003 – 2004 |
| Board of Directors | 2001 – 2002 |
| Chairman | 2001 – 2004 |
| Board of Directors | 1969 – 2000 |
| Board of Directors | 2003 – 2003 |
| Board of Directors | 1969 – 2001 |
| Board of Directors | 2004 – 2005 |