1997 |
69%
|
1997 |
86%
|
1993 |
86%
|
1995 |
79%
|
1992 |
79%
|
1992 |
66%
|
2007 |
68%
|
2000 |
72%
|
2008 |
76%
|
2009 |
77%
|
1996 |
67%
|
1976 |
65%
|
1986 |
74%
|
1996 |
68%
|
1994 |
68%
|
1983 |
56%
|
2001 |
73%
|