| Board of Directors | 1987 – 1993 |
| Chairman | 1987 – 1991 |
| Board of Directors | 2003 – 2003 |
| Board of Directors | 1987 – 1996 |
| Board of Directors | 1987 – 1991 |
| Board of Directors | 2003 – 2004 |
| Board of Directors | 1987 – 1991 |
| Board of Directors | 1987 – 2003 |
| Chairman | 1987 – 1994 |
| Board of Directors | 1987 – 1993 |
| Board of Directors | 1987 – 1989 |
| Board of Directors | 1987 – 1994 |
| Chairman | 1987 – 1993 |
| Board of Directors | 2004 – 2007 |
| Board of Directors | 2001 – 2004 |
| Board of Directors | 1987 – 1996 |
| Chairman | 1987 – 2007 |
| Board of Directors | 1987 – 1995 |
| Board of Directors | 1987 – 1994 |