| Current (4) |
| Board of Directors | 2025 |
| Chairman | 2023 |
| Deputy Chairman | 2022 |
| Board of Directors | 2023 |
| Former (39) |
| Chairman | 2019 – 2021 |
| Board of Directors | 2012 – 2018 |
| Board of Directors | 1986 – 2006 |
| Board of Directors | 1986 – 1994 |
| Board of Directors | 1999 – 2010 |
| Board of Directors | 2001 – 2011 |
| Board of Directors | 2001 – 2016 |
| Board of Directors | 1986 – 2006 |
| Board of Directors | 2012 – 2016 |
| Deputy Chairman | 2019 – 2022 |
| Board of Directors | 2011 – 2016 |
| Board of Directors | 1986 – 2003 |
| Chairman | 1986 – 2005 |
| Board of Directors | 1986 – 1994 |
| Board of Directors | 1999 – 2012 |
| Board of Directors | 2011 – 2015 |
| Chairman | 2005 – 2013 |
| Board of Directors | 1986 – 1994 |
| Board of Directors | 2017 – 2018 |
| Chairman | 2021 – 2023 |
| Board of Directors | 2018 – 2019 |
| Deputy Chairman | 2001 – 2014 |
| Deputy Chairman | 2017 – 2019 |
| Board of Directors | 1986 – 1994 |
| Chairman | 2017 – 2019 |
| Board of Directors | 1986 – 2001 |
| Board of Directors | 2001 – 2025 |
| Board of Directors | 1986 – 2013 |
| Board of Directors | 2018 – 2019 |
| Board of Directors | 2006 – 2007 |
| Board of Directors | 2015 – 2016 |
| Board of Directors | 2017 – 2018 |
| Board of Directors | 1986 – 2004 |
| Board of Directors | 2012 – 2019 |
| Board of Directors | 1986 – 1994 |
| Chairman | 1986 – 1994 |
| Deputy Chairman | 2015 – 2017 |
| Board of Directors | 1986 – 2013 |
| Deputy Chairman | 1986 – 2001 |
