2013 |
87%
|
2012 |
80%
|
2004 |
58%
|
1982 |
85%
|
2004 |
77%
|
1982 |
84%
|
1978 |
70%
|
2009 |
36%
|
1978 |
65%
|
1985 |
77%
|
1990 |
57%
|
1995 |
52%
|
1990 |
73%
|