| Board of Directors | 1972 – 1993 |
| Board of Directors | 1996 – 1998 |
| Board of Directors | 1998 – 2003 |
| Board of Directors | 1972 – 1992 |
| Board of Directors | 1972 – 1993 |
| Board of Directors | 1996 – 2006 |
| Board of Directors | 1992 – 1993 |
| Board of Directors | 1972 – 1996 |
| Chairman | 2003 – 2006 |
| Board of Directors | 2003 – 2006 |
| Board of Directors | 1972 – 1996 |
| Board of Directors | 1972 – 1993 |
| Board of Directors | 1972 – 1994 |
| Board of Directors | 1972 – 1996 |
| Board of Directors | 1972 – 1993 |
| Board of Directors | 1972 – 1994 |