1989 |
64%
|
1985 |
78%
|
1992 |
49%
|
1986 |
66%
|
1993 |
60%
|
1997 |
50%
|
2007 |
68%
|
1996 |
54%
|
1995 |
59%
|
1996 |
54%
|
1989 |
54%
|
2005 |
62%
|
1998 |
47%
|
2007 |
67%
|
1998 |
49%
|
1997 |
60%
|
1998 |
60%
|
1999 |
60%
|
1996 |
46%
|