| Former (18) |
| Chairman | 2020 – 2022 |
| Board of Directors | 2006 – 2010 |
| Board of Directors | 2016 – 2019 |
| Chairman | 2003 – 2009 |
| Board of Directors | 2003 – 2010 |
| Board of Directors | 2000 – 2003 |
| Board of Directors | 2003 – 2010 |
| Board of Directors | 2010 – 2015 |
| Board of Directors | 2000 – 2002 |
| Deputy Chairman | 2010 – 2022 |
| Board of Directors | 2000 – 2002 |
| Chairman | 2009 – 2019 |
| Board of Directors | 2003 – 2010 |
| Board of Directors | 2019 – 2022 |
| Board of Directors | 2002 – 2003 |
| Board of Directors | 2000 – 2003 |
| Board of Directors | 2002 – 2003 |
| Chairman | 2019 – 2019 |