| 2004 |
15%
|
| 1980 |
47%
|
| 2005 |
21%
|
| 2005 |
15%
|
| 1983 |
21%
|
| 2006 |
14%
|
| 2005 |
19%
|
| 2007 |
13%
|
| 1994 |
14%
|
| 2010 |
21%
|
| 1964 |
45%
|
| 1991 |
28%
|
