| Deputy Chairman | 1998 – 1999 |
| Board of Directors | 2011 – 2016 |
| Board of Directors | 2016 – 2016 |
| Board of Directors | 2011 – 2016 |
| Board of Directors | 2006 – 2016 |
| Board of Directors | 2002 – 2006 |
| Chairman | 2016 – 2016 |
| Chairman | 2011 – 2016 |
| Board of Directors | 2006 – 2005 |
| Chairman | 2002 – 2004 |
| Board of Directors | 1998 – 2010 |
| Board of Directors | 2016 – 2016 |
| Deputy Chairman | 1999 – 2010 |
| Chairman | 1998 – 2002 |
| Board of Directors | 1998 – 2004 |
| Chairman | 2006 – 2010 |