| 1998 |
57%
|
| 1981 |
67%
|
| 1996 |
77%
|
| 1967 |
79%
|
| 1971 |
79%
|
| 1969 |
79%
|
| 1981 |
54%
|
| 1995 |
56%
|
| 1987 |
78%
|
| 1995 |
51%
|
| 1987 |
77%
|
| 1988 |
77%
|
| 1997 |
69%
|
| 1996 |
69%
|
| 1985 |
67%
|
| 1999 |
75%
|
| 1987 |
53%
|
| 1976 |
37%
|
