| Board of Directors | 2004 – 2004 |
| Board of Directors | 2003 – 2007 |
| Board of Directors | 1944 – 1993 |
| Board of Directors | 2000 – 2004 |
| Board of Directors | 1999 – 2004 |
| Board of Directors | 1999 – 1999 |
| Board of Directors | 1999 – 2003 |
| Deputy Chairman | 2009 – 2019 |
| Chairman | 1944 – 1999 |
| Board of Directors | 2007 – 2010 |
| Chairman | 1944 – 1988 |
| Chairman | 2019 – 2019 |
| Board of Directors | 2004 – 2008 |
| Board of Directors | 2000 – 2002 |
| Board of Directors | 1944 – 2000 |
| Board of Directors | 1944 – 1996 |
| Board of Directors | 1996 – 1999 |
| Board of Directors | 2019 – 2019 |
| Board of Directors | 2002 – 2004 |
| Board of Directors | 1944 – 1993 |
| Chairman | 1944 – 1996 |
| Board of Directors | 2019 – 2019 |
| Board of Directors | 1944 – 1994 |
| Chairman | 2007 – 2019 |
| Deputy Chairman | 2007 – 2009 |
| Board of Directors | 1944 – 1992 |
| Board of Directors | 1944 – 1996 |
| Board of Directors | 2010 – 2019 |
| Chairman | 1999 – 2003 |
| Board of Directors | 1944 – 1992 |
| Board of Directors | 1944 – 1988 |
| Chairman | 1944 – 1991 |
| Board of Directors | 1996 – 2000 |
| Board of Directors | 2004 – 2008 |
| Deputy Chairman | 1944 – 1998 |