| Board of Directors | 1989 – 1990 |
| Board of Directors | 1989 – 1990 |
| Board of Directors | 1989 – 1993 |
| Board of Directors | 1989 – 2003 |
| Board of Directors | 2005 – 2006 |
| Board of Directors | 1989 – 2002 |
| Deputy Chairman | 2002 – 2005 |
| Chairman | 2002 – 2006 |
| Board of Directors | 1989 – 2002 |
| Deputy Chairman | 2005 – 2006 |
| Board of Directors | 2002 – 2005 |
| Board of Directors | 1989 – 2002 |
| Board of Directors | 1989 – 1990 |
| Board of Directors | 1989 – 1994 |