| Board of Directors | 2006 – 2013 |
| Board of Directors | 2012 – 2013 |
| Board of Directors | 1982 – 1993 |
| Board of Directors | 1982 – 1992 |
| Chairman | 2012 – 2013 |
| Board of Directors | 2012 – 2013 |
| Board of Directors | 1982 – 1988 |
| Board of Directors | 1982 – 1999 |
| Chairman | 2009 – 2012 |
| Board of Directors | 1982 – 1989 |
| Board of Directors | 2006 – 2006 |
| Chairman | 2006 – 2009 |
| Board of Directors | 2006 – 2012 |
| Board of Directors | 1982 – 1999 |
| Board of Directors | 2004 – 2006 |
| Board of Directors | 1982 – 1999 |