| Current (3) |
| Board of Directors | 2019 |
| Board of Directors | 2023 |
| Chairman | 2023 |
| Former (14) |
| Board of Directors | 2014 – 2016 |
| Board of Directors | 1991 – 1999 |
| Board of Directors | 1991 – 1998 |
| Board of Directors | 1991 – 2007 |
| Board of Directors | 1999 – 2006 |
| Chairman | 2013 – 2016 |
| Board of Directors | 2001 – 2003 |
| Deputy Chairman | 2013 – 2016 |
| Board of Directors | 1991 – 2007 |
| Board of Directors | 2006 – 2016 |
| Deputy Chairman | 2016 – 2016 |
| Board of Directors | 1991 – 2005 |
| Board of Directors | 1991 – 1996 |
| Board of Directors | 2014 – 2016 |