| Current (4) |
| Deputy Chairman | 2016 |
| Chairman | 2016 |
| Board of Directors | 2016 |
| Board of Directors | 2017 |
| Former (11) |
| Board of Directors | 1996 – 2010 |
| Board of Directors | 2005 – 2013 |
| Board of Directors | 1996 – 1997 |
| Chairman | 2014 – 2015 |
| Board of Directors | 1996 – 2005 |
| Board of Directors | 2015 – 2016 |
| Chairman | 2015 – 2016 |
| Board of Directors | 2016 – 2017 |
| Board of Directors | 2015 – 2016 |
| Board of Directors | 1998 – 2011 |
| Board of Directors | 2010 – 2016 |