| 1971 |
40%
|
| 1982 |
58%
|
| 1991 |
54%
|
| 1990 |
59%
|
| 1994 |
54%
|
| 1990 |
67%
|
| 1992 |
73%
|
| 1982 |
67%
|
| 1988 |
59%
|
| 1991 |
53%
|
| 1997 |
71%
|
| 2003 |
64%
|
| 1988 |
54%
|
| 2000 |
42%
|
| 2003 |
84%
|
| 2003 |
--
|
| 2008 |
--
|
