| 2010 |
79%
|
| 2014 |
66%
|
| 1994 |
72%
|
| 1985 |
77%
|
| 1987 |
76%
|
| 1989 |
63%
|
| 1994 |
66%
|
| 1981 |
57%
|
| 1992 |
70%
|
| 1993 |
70%
|
| 1997 |
63%
|
| 1998 |
63%
|
| 2003 |
62%
|
| 2005 |
43%
|
| 1987 |
58%
|
| 1986 |
58%
|
