| Board of Directors | 1987 – 1999 |
| Board of Directors | 1987 – 1993 |
| Board of Directors | 1987 – 2004 |
| Board of Directors | 1987 – 1999 |
| Board of Directors | 1999 – 2008 |
| Board of Directors | 1999 – 2004 |
| Board of Directors | 1987 – 1999 |
| Board of Directors | 2004 – 2008 |
| Board of Directors | 1999 – 2004 |
| Chairman | 2004 – 2008 |
| Deputy Chairman | 1999 – 2004 |
| Board of Directors | 1987 – 1993 |
| Board of Directors | 1987 – 1999 |
| Board of Directors | 2004 – 2008 |
| Deputy Chairman | 2004 – 2008 |
| Board of Directors | 1987 – 2008 |
| Board of Directors | 2004 – 2008 |
| Chairman | 1999 – 2004 |
| Chairman | 1987 – 1999 |
| Board of Directors | 1987 – 1993 |
| Board of Directors | 1987 – 1999 |