| 2002 |
71%
|
| 2001 |
77%
|
| 2004 |
65%
|
| 2007 |
69%
|
| 2005 |
54%
|
| 2002 |
55%
|
| 2007 |
24%
|
| 1999 |
68%
|
| 2001 |
53%
|
| 1992 |
75%
|
| 1997 |
52%
|
| 2006 |
48%
|
| 1991 |
49%
|
| 2001 |
58%
|
| 2002 |
56%
|
| 1991 |
62%
|
