| 1988 |
79%
|
| 2000 |
78%
|
| 1988 |
77%
|
| 1997 |
81%
|
| 1985 |
77%
|
| 1982 |
72%
|
| 1981 |
72%
|
| 2002 |
75%
|
| 1985 |
74%
|
| 1987 |
74%
|
| 1988 |
74%
|
| 1994 |
79%
|
| 1981 |
69%
|
| 1990 |
74%
|
| 1992 |
73%
|
| 1993 |
73%
|
| 2006 |
63%
|
| 2000 |
57%
|
| 1998 |
34%
|
