| 2007 |
63%
|
| 2001 |
67%
|
| 1992 |
77%
|
| 1975 |
85%
|
| 1996 |
55%
|
| 1975 |
79%
|
| 1988 |
62%
|
| 1979 |
78%
|
| 1970 |
65%
|
| 1980 |
75%
|
| 1974 |
64%
|
