2000 |
68%
|
2004 |
59%
|
2013 |
64%
|
1988 |
56%
|
1989 |
45%
|
2004 |
65%
|
1985 |
54%
|
1989 |
55%
|
1994 |
32%
|
1996 |
46%
|