1998 |
72%
|
1983 |
63%
|
1983 |
75%
|
1985 |
75%
|
1982 |
62%
|
1995 |
56%
|
1983 |
74%
|
2010 |
74%
|
1981 |
57%
|
1983 |
57%
|
1981 |
49%
|
1997 |
69%
|
1979 |
66%
|
1989 |
48%
|
1988 |
47%
|
1999 |
57%
|