2005 |
75%
|
1996 |
70%
|
1989 |
68%
|
2002 |
53%
|
1996 |
57%
|
1996 |
57%
|
2000 |
61%
|
1993 |
75%
|
1995 |
71%
|
1991 |
65%
|
2007 |
42%
|
2003 |
56%
|
2004 |
52%
|
1993 |
54%
|
2000 |
45%
|
2001 |
47%
|
2018 |
56%
|
1986 |
63%
|
2000 |
48%
|
1991 |
61%
|
1990 |
80%
|
1989 |
60%
|
1986 |
74%
|
1990 |
54%
|
2012 |
35%
|
1987 |
46%
|