| Current (3) |
| Board of Directors | 2024 |
| Chairman | 2021 |
| Board of Directors | 2022 |
| Former (13) |
| Board of Directors | 2017 – 2021 |
| Chairman | 2017 – 2021 |
| Board of Directors | 2014 – 2015 |
| Board of Directors | 2013 – 2015 |
| Chairman | 2011 – 2013 |
| Board of Directors | 1985 – 1994 |
| Board of Directors | 1985 – 2017 |
| Board of Directors | 2021 – 2023 |
| Board of Directors | 2017 – 2020 |
| Board of Directors | 1985 – 2011 |
| Board of Directors | 2013 – 2015 |
| Board of Directors | 2023 – 2024 |
| Deputy Chairman | 2013 – 2015 |