| Board of Directors | 1992 – 1995 |
| Board of Directors | 1992 – 1995 |
| Board of Directors | 2011 – 2013 |
| Chairman | 2011 – 2013 |
| Board of Directors | 2014 – 2016 |
| Board of Directors | 2007 – 2011 |
| Board of Directors | 2011 – 2016 |
| Board of Directors | 1992 – 2002 |
| Board of Directors | 2002 – 2007 |
| Chairman | 2005 – 2011 |
| Chairman | 2015 – 2016 |
| Board of Directors | 2013 – 2014 |
| Board of Directors | 2002 – 2005 |
| Chairman | 2013 – 2015 |
| Board of Directors | 2002 – 2011 |
| Chairman | 1992 – 2002 |
| Deputy Chairman | 1992 – 2002 |