| Chairman | 1992 – 1992 |
| Board of Directors | 1994 – 1997 |
| Chairman | 1998 – 2001 |
| Board of Directors | 1992 – 1998 |
| Board of Directors | 1998 – 2001 |
| Chairman | 2001 – 2004 |
| Board of Directors | 1992 – 1995 |
| Board of Directors | 1992 – 1995 |
| Board of Directors | 1992 – 1995 |
| Chairman | 1997 – 1998 |
| Board of Directors | 1992 – 1992 |
| Board of Directors | 1995 – 2004 |
| Board of Directors | 2001 – 2004 |
| Board of Directors | 1995 – 1997 |
| Board of Directors | 1997 – 2000 |
| Board of Directors | 1992 – 1992 |
| Chairman | 1992 – 1995 |