| 1975 |
79%
|
| 1997 |
71%
|
| 1984 |
74%
|
| 1997 |
62%
|
| 2011 |
64%
|
| 1984 |
77%
|
| 2002 |
62%
|
| 2014 |
67%
|
| 2011 |
76%
|
| 2011 |
75%
|
| 2009 |
76%
|
| 2010 |
80%
|
