1988 |
71%
|
1994 |
55%
|
1986 |
65%
|
2012 |
37%
|
2000 |
71%
|
1999 |
71%
|
1996 |
68%
|
1994 |
68%
|
1995 |
68%
|
1997 |
68%
|
1994 |
68%
|
2005 |
35%
|
1998 |
60%
|
1999 |
60%
|
1997 |
60%
|
1995 |
51%
|
1996 |
49%
|