| Board of Directors | 1990 – 1990 |
| Board of Directors | 1990 – 1994 |
| Board of Directors | 1990 – 1993 |
| Chairman | 1990 – 1994 |
| Board of Directors | 1990 – 1997 |
| Board of Directors | 1990 – 1990 |
| Board of Directors | 1990 – 1994 |
| Board of Directors | 1995 – 2003 |
| Board of Directors | 1990 – 2003 |
| Board of Directors | 1990 – 1997 |
| Board of Directors | 1999 – 2003 |
| Board of Directors | 1997 – 1999 |
| Chairman | 1990 – 1990 |