| 1999 |
86%
|
| 1988 |
76%
|
| 1990 |
64%
|
| 1996 |
35%
|
| 1982 |
49%
|
| 1979 |
65%
|
| 1988 |
55%
|
| 1988 |
55%
|
| 1985 |
38%
|
| 1989 |
46%
|
| 1993 |
56%
|
| 1973 |
56%
|
| 1999 |
44%
|
| 1994 |
58%
|
| 1975 |
66%
|
