1999 |
74%
|
1977 |
76%
|
1983 |
75%
|
2007 |
74%
|
1977 |
72%
|
1979 |
76%
|
1987 |
61%
|
1995 |
67%
|
1990 |
32%
|
1985 |
77%
|
1975 |
75%
|