| 2001 |
68%
|
| 2002 |
58%
|
| 2008 |
52%
|
| 1987 |
63%
|
| 1987 |
65%
|
| 2005 |
45%
|
| 2015 |
47%
|
| 1987 |
72%
|
| 1988 |
65%
|
| 1978 |
55%
|
| 2002 |
48%
|
| 1996 |
55%
|
