| 1996 |
56%
|
| 1997 |
56%
|
| 1994 |
56%
|
| 1995 |
56%
|
| 1998 |
56%
|
| 1999 |
56%
|
| 1980 |
70%
|
| 1979 |
70%
|
| 1978 |
70%
|
| 1981 |
70%
|
| 1984 |
67%
|
| 1988 |
57%
|
