| 1976 |
85%
|
| 1977 |
64%
|
| 1968 |
79%
|
| 1969 |
79%
|
| 1977 |
75%
|
| 1975 |
74%
|
| 1991 |
49%
|
| 2001 |
64%
|
| 1975 |
60%
|
| 1986 |
58%
|
| 1986 |
55%
|
| 1987 |
62%
|
| 1986 |
51%
|
| 1987 |
59%
|
| 1986 |
52%
|
| 1988 |
54%
|
| 1996 |
54%
|
| 1987 |
--
|
