| Chairman | 2008 – 2011 |
| Board of Directors | 2008 – 2011 |
| Chairman | 1999 – 2008 |
| Board of Directors | 2008 – 2012 |
| Board of Directors | 2008 – 2008 |
| Board of Directors | 2008 – 2012 |
| Board of Directors | 1995 – 2008 |
| Board of Directors | 2012 – 2013 |
| Board of Directors | 2008 – 2012 |
| Board of Directors | 2003 – 2007 |
| Board of Directors | 1991 – 1996 |
| Board of Directors | 2011 – 2013 |
| Chairman | 2011 – 2013 |
| Deputy Chairman | 2012 – 2013 |
| Deputy Chairman | 1999 – 2008 |
| Board of Directors | 2011 – 2013 |
| Deputy Chairman | 1996 – 1999 |
| Deputy Chairman | 2008 – 2012 |
| Chairman | 1991 – 1995 |
| Board of Directors | 1999 – 1999 |
| Board of Directors | 1991 – 2008 |