| Board of Directors | 2003 – 2010 |
| Board of Directors | 2003 – 2011 |
| Board of Directors | 1983 – 1991 |
| Board of Directors | 2008 – 2010 |
| Board of Directors | 2011 – 2013 |
| Board of Directors | 2001 – 2002 |
| Board of Directors | 1983 – 1999 |
| Chairman | 2003 – 2005 |
| Board of Directors | 2013 – 2013 |
| Board of Directors | 1983 – 1991 |
| Board of Directors | 1983 – 1990 |
| Board of Directors | 1983 – 1994 |
| Board of Directors | 1983 – 2003 |
| Chairman | 2010 – 2013 |
| Board of Directors | 1994 – 2001 |
| Board of Directors | 1999 – 2008 |
| Board of Directors | 2011 – 2013 |