1999 |
75%
|
1997 |
67%
|
1988 |
46%
|
1991 |
47%
|
1998 |
64%
|
1986 |
43%
|
1987 |
65%
|
1995 |
62%
|
1990 |
59%
|
1995 |
68%
|
1997 |
59%
|
1989 |
58%
|
1995 |
50%
|
1996 |
72%
|
2006 |
70%
|
1991 |
68%
|
1998 |
67%
|
1991 |
53%
|
1995 |
68%
|
1995 |
64%
|
1995 |
86%
|
1997 |
78%
|
1986 |
76%
|
2008 |
--
|
1996 |
--
|
1987 |
--
|
1991 |
--
|
2011 |
--
|
1996 |
--
|
2006 |
--
|
2006 |
--
|
2010 |
--
|