| 2003 |
60%
|
| 1999 |
74%
|
| 2000 |
53%
|
| 1997 |
67%
|
| 1999 |
64%
|
| 1980 |
62%
|
| 1995 |
67%
|
| 1985 |
77%
|
| 1963 |
82%
|
| 2006 |
65%
|
| 1960 |
48%
|
