| 1998 |
67%
|
| 1996 |
84%
|
| 1976 |
67%
|
| 1996 |
56%
|
| 1981 |
50%
|
| 2001 |
45%
|
| 1997 |
69%
|
| 1999 |
68%
|
| 1984 |
67%
|
| 1997 |
50%
|
| 1995 |
41%
|
| 2006 |
27%
|
| 1989 |
52%
|
| 1998 |
54%
|
