| Board of Directors | 2004 – 2008 |
| Board of Directors | 2003 – 2008 |
| Board of Directors | 2007 – 2008 |
| Board of Directors | 1989 – 1990 |
| Chairman | 2008 – 2009 |
| Board of Directors | 1989 – 1991 |
| Board of Directors | 2000 – 2000 |
| Board of Directors | 2011 – 2011 |
| Board of Directors | 2008 – 2011 |
| Board of Directors | 1989 – 1995 |
| Board of Directors | 1989 – 1990 |
| Board of Directors | 1989 – 1990 |
| Board of Directors | 2004 – 2005 |
| Board of Directors | 2005 – 2007 |
| Board of Directors | 1999 – 2000 |
| Board of Directors | 1999 – 2000 |
| Board of Directors | 2000 – 2002 |
| Chairman | 2003 – 2004 |
| Chairman | 2009 – 2011 |
| Board of Directors | 1989 – 1993 |
| Board of Directors | 1994 – 2002 |
| Board of Directors | 2002 – 2004 |
| Board of Directors | 2008 – 2011 |
| Board of Directors | 2007 – 2007 |