| 1992 |
41%
|
| 1954 |
77%
|
| 1974 |
58%
|
| 1987 |
44%
|
| 1988 |
42%
|
| 1989 |
40%
|
| 1997 |
35%
|
| 1990 |
44%
|
| 1991 |
47%
|
| 1993 |
43%
|
| 1986 |
61%
|
