| Board of Directors | 2006 – 2008 |
| Board of Directors | 1962 – 1992 |
| Board of Directors | 1962 – 2001 |
| Chairman | 2007 – 2008 |
| Board of Directors | 1962 – 1993 |
| Board of Directors | 1997 – 2004 |
| Board of Directors | 2007 – 2008 |
| Board of Directors | 1962 – 1990 |
| Board of Directors | 1962 – 1996 |
| Board of Directors | 1999 – 2001 |
| Chairman | 2004 – 2006 |
| Board of Directors | 2006 – 2007 |
| Board of Directors | 1962 – 1996 |
| Chairman | 2006 – 2007 |
| Board of Directors | 1962 – 1996 |
| Board of Directors | 2004 – 2006 |
| Chairman | 1997 – 1999 |
| Board of Directors | 1962 – 1990 |
| Chairman | 2007 – 2008 |