| Chairman | 2004 – 2011 |
| Board of Directors | 2001 – 2001 |
| Board of Directors | 1989 – 1989 |
| Chairman | 1989 – 1995 |
| Board of Directors | 2000 – 2000 |
| Board of Directors | 1989 – 1989 |
| Board of Directors | 1989 – 2000 |
| Board of Directors | 2004 – 2011 |
| Board of Directors | 1989 – 1997 |
| Board of Directors | 1998 – 1999 |
| Board of Directors | 1998 – 1999 |
| Board of Directors | 2000 – 2001 |
| Board of Directors | 1998 – 2000 |
| Chairman | 1997 – 1998 |
| Chairman | 1989 – 1989 |
| Board of Directors | 2001 – 2004 |
| Board of Directors | 2001 – 2004 |
| Board of Directors | 2004 – 2008 |
| Board of Directors | 1995 – 1998 |
| Board of Directors | 1989 – 1998 |
| Board of Directors | 2008 – 2011 |