| 1997 |
75%
|
| 1985 |
76%
|
| 2008 |
79%
|
| 1993 |
79%
|
| 1997 |
68%
|
| 1992 |
80%
|
| 1980 |
60%
|
| 1976 |
65%
|
| 1999 |
36%
|
| 1987 |
60%
|
| 2001 |
57%
|
| 1997 |
57%
|
| 1993 |
54%
|
