| 1979 |
53%
|
| 2000 |
54%
|
| 1992 |
52%
|
| 1976 |
54%
|
| 1991 |
55%
|
| 1998 |
51%
|
| 1982 |
23%
|
| 1983 |
54%
|
| 2003 |
49%
|
| 1985 |
49%
|
| 2002 |
50%
|
| 1974 |
52%
|
| 1987 |
47%
|
| 1988 |
41%
|
| 1970 |
50%
|
| 1975 |
57%
|
| 1983 |
31%
|
| 1980 |
45%
|
