| 2001 |
77%
|
| 2004 |
65%
|
| 2007 |
69%
|
| 1984 |
70%
|
| 2010 |
62%
|
| 1986 |
61%
|
| 1989 |
53%
|
| 1997 |
59%
|
| 1994 |
45%
|
| 1989 |
48%
|
