| 1991 |
85%
|
| 2003 |
61%
|
| 2009 |
64%
|
| 1990 |
73%
|
| 1982 |
79%
|
| 1992 |
65%
|
| 1985 |
67%
|
| 1988 |
59%
|
| 1990 |
74%
|
| 1991 |
67%
|
| 1995 |
50%
|
| 1997 |
59%
|
| 2008 |
76%
|
| 2008 |
76%
|
| 2006 |
44%
|
| 1980 |
72%
|
| 1993 |
68%
|
| 1990 |
48%
|
