| Current (3) |
| Chairman | 2024 |
| Board of Directors | 2023 |
| Deputy Chairman | 2025 |
| Former (15) |
| Board of Directors | 1990 – 2003 |
| Board of Directors | 1996 – 2016 |
| Chairman | 2019 – 2020 |
| Board of Directors | 2011 – 2016 |
| Board of Directors | 1990 – 1996 |
| Board of Directors | 2023 – 2025 |
| Board of Directors | 2020 – 2023 |
| Board of Directors | 1990 – 1992 |
| Chairman | 2016 – 2019 |
| Board of Directors | 1996 – 1996 |
| Chairman | 2016 – 2016 |
| Chairman | 2020 – 2024 |
| Board of Directors | 2016 – 2017 |
| Board of Directors | 2003 – 2016 |
| Board of Directors | 2016 – 2016 |