1991 |
64%
|
1988 |
49%
|
1998 |
43%
|
1987 |
40%
|
1999 |
38%
|
1988 |
49%
|
2013 |
24%
|
2010 |
41%
|
2007 |
26%
|
1999 |
21%
|
1999 |
28%
|
2003 |
30%
|
1989 |
48%
|
1993 |
36%
|
1999 |
37%
|
1989 |
41%
|
1994 |
41%
|
1996 |
29%
|
1997 |
52%
|
1995 |
33%
|
1999 |
33%
|
1989 |
41%
|
1995 |
38%
|
1995 |
34%
|
2014 |
15%
|
2014 |
13%
|
2012 |
19%
|
1988 |
40%
|
2016 |
34%
|
1989 |
43%
|
1997 |
36%
|
2011 |
24%
|
2012 |
22%
|
2011 |
35%
|
2014 |
50%
|
1996 |
35%
|
2018 |
36%
|
2018 |
27%
|
2019 |
28%
|
2017 |
64%
|
1986 |
59%
|