| Current (8) |
| Chairman | 2023 |
| Board of Directors | 2022 |
| Board of Directors | 2022 |
| Board of Directors | 2019 |
| Board of Directors | 2022 |
| Board of Directors | 2022 |
| Board of Directors | 2023 |
| Board of Directors | 2023 |
| Former (24) |
| Board of Directors | 2014 – 2022 |
| Board of Directors | 1998 – 2001 |
| Board of Directors | 1979 – 1995 |
| Chairman | 2017 – 2022 |
| Board of Directors | 1979 – 2006 |
| Board of Directors | 1979 – 1990 |
| Board of Directors | 2006 – 2015 |
| Board of Directors | 1979 – 1988 |
| Board of Directors | 1979 – 2000 |
| Deputy Chairman | 1998 – 2005 |
| Board of Directors | 1998 – 2006 |
| Chairman | 2011 – 2017 |
| Chairman | 2017 – 2017 |
| Chairman | 1996 – 2010 |
| Deputy Chairman | 2005 – 2010 |
| Board of Directors | 1979 – 1995 |
| Board of Directors | 1979 – 1996 |
| Chairman | 2022 – 2023 |
| Board of Directors | 2000 – 2023 |
| Board of Directors | 2015 – 2023 |
| Chairman | 2010 – 2011 |
| Board of Directors | 2006 – 2019 |
| Board of Directors | 2005 – 2010 |
| Deputy Chairman | 1979 – 1994 |