| Former (26) |
| Board of Directors | 2006 – 2008 |
| Board of Directors | 2019 – 2024 |
| Board of Directors | 1998 – 2008 |
| Board of Directors | 2005 – 2009 |
| Board of Directors | 2018 – 2018 |
| Board of Directors | 1947 – 1998 |
| Board of Directors | 2019 – 2024 |
| Board of Directors | 1947 – 1997 |
| Deputy Chairman | 2013 – 2018 |
| Board of Directors | 2004 – 2004 |
| Deputy Chairman | 2008 – 2013 |
| Board of Directors | 1947 – 2002 |
| Board of Directors | 2008 – 2018 |
| Board of Directors | 2002 – 2006 |
| Deputy Chairman | 2022 – 2024 |
| Board of Directors | 2002 – 2010 |
| Board of Directors | 2013 – 2019 |
| Board of Directors | 2019 – 2021 |
| Board of Directors | 1947 – 2002 |
| Board of Directors | 1947 – 1999 |
| Chairman | 2017 – 2019 |
| Board of Directors | 2021 – 2024 |
| Chairman | 2002 – 2017 |
| Board of Directors | 1997 – 2005 |
| Board of Directors | 1947 – 1999 |
| Chairman | 2002 – 2008 |