| Board of Directors | 1989 – 1992 |
| Board of Directors | 1989 – 1992 |
| Board of Directors | 1989 – 2012 |
| Board of Directors | 1989 – 1989 |
| Board of Directors | 1997 – 2012 |
| Board of Directors | 1989 – 2012 |
| Board of Directors | 1989 – 1998 |
| Board of Directors | 1989 – 2012 |
| Board of Directors | 2000 – 2012 |
| Board of Directors | 1989 – 1998 |
| Board of Directors | 2007 – 2012 |
| Chairman | 1989 – 1989 |
| Board of Directors | 1989 – 1989 |
| Chairman | 1989 – 2012 |