| 1992 |
90%
|
| 1991 |
79%
|
| 1992 |
79%
|
| 1990 |
79%
|
| 1980 |
65%
|
| 1994 |
70%
|
| 1993 |
63%
|
| 1994 |
62%
|
| 1995 |
62%
|
| 1978 |
52%
|
| 1989 |
60%
|
| 1991 |
63%
|
| 1990 |
63%
|
