2006 |
71%
|
2006 |
53%
|
1982 |
78%
|
1985 |
78%
|
1982 |
85%
|
1995 |
48%
|
2010 |
56%
|
1998 |
60%
|
1995 |
71%
|
1986 |
50%
|
1988 |
58%
|
2000 |
56%
|
1986 |
55%
|
1980 |
75%
|
1986 |
74%
|
1994 |
38%
|
1995 |
40%
|
1983 |
66%
|
1990 |
51%
|
1986 |
33%
|
1975 |
66%
|
1984 |
57%
|
1989 |
50%
|
2007 |
59%
|
2011 |
76%
|
2013 |
45%
|