| Board of Directors | 2009 – 2015 |
| Chairman | 1999 – 2009 |
| Deputy Chairman | 1999 – 2009 |
| Board of Directors | 2017 – 2019 |
| Chairman | 1997 – 1999 |
| Board of Directors | 1998 – 2010 |
| Chairman | 1992 – 1992 |
| Board of Directors | 1992 – 1998 |
| Deputy Chairman | 2009 – 2016 |
| Deputy Chairman | 2016 – 2019 |
| Board of Directors | 2005 – 2009 |
| Deputy Chairman | 2019 – 2021 |
| Chairman | 2020 – 2023 |
| Board of Directors | 1992 – 1995 |
| Board of Directors | 2019 – 2023 |
| Board of Directors | 2002 – 2002 |
| Board of Directors | 1992 – 2005 |
| Board of Directors | 1992 – 2002 |
| Board of Directors | 2017 – 2023 |
| Board of Directors | 1992 – 1992 |
| Board of Directors | 2021 – 2023 |
| Chairman | 2009 – 2010 |
| Chairman | 2018 – 2020 |
| Board of Directors | 2009 – 2017 |
| Chairman | 2010 – 2018 |
| Board of Directors | 1992 – 1996 |
| Board of Directors | 1992 – 1992 |