| Current (2) |
| Chairman | 2024 |
| Board of Directors | 2024 |
| Former (17) |
| Board of Directors | 1983 – 1997 |
| Board of Directors | 2021 – 2024 |
| Board of Directors | 1997 – 2000 |
| Board of Directors | 1983 – 1997 |
| Board of Directors | 1997 – 2000 |
| Board of Directors | 1997 – 2000 |
| Board of Directors | 1998 – 2000 |
| Chairman | 2002 – 2006 |
| Board of Directors | 1983 – 1997 |
| Chairman | 1997 – 1997 |
| Chairman | 2007 – 2020 |
| Board of Directors | 2002 – 2020 |
| Board of Directors | 1997 – 2000 |
| Chairman | 2000 – 2001 |
| Chairman | 2020 – 2024 |
| Chairman | 2001 – 2002 |
| Board of Directors | 1983 – 1997 |