1997 |
67%
|
1999 |
74%
|
1999 |
64%
|
1995 |
72%
|
2001 |
74%
|
1997 |
64%
|
1996 |
64%
|
1994 |
64%
|
1995 |
64%
|
2003 |
40%
|
1998 |
60%
|
1991 |
56%
|
2004 |
70%
|