| Current (2) |
| Board of Directors | 2021 |
| Chairman | 2020 |
| Former (14) |
| Board of Directors | 2002 – 2006 |
| Board of Directors | 2015 – 2018 |
| Board of Directors | 2002 – 2009 |
| Chairman | 2014 – 2017 |
| Board of Directors | 2005 – 2008 |
| Board of Directors | 2008 – 2010 |
| Chairman | 2017 – 2020 |
| Board of Directors | 2018 – 2020 |
| Board of Directors | 2012 – 2013 |
| Board of Directors | 2014 – 2015 |
| Chairman | 2010 – 2012 |
| Board of Directors | 2002 – 2005 |
| Board of Directors | 2010 – 2010 |
| Board of Directors | 2002 – 2004 |