1998 |
58%
|
1975 |
48%
|
1984 |
34%
|
1994 |
48%
|
1987 |
32%
|
1988 |
32%
|
2003 |
44%
|
1994 |
48%
|
1993 |
36%
|
1994 |
45%
|
1998 |
54%
|
1994 |
47%
|
1994 |
43%
|
1994 |
43%
|
1994 |
41%
|
2000 |
41%
|
1993 |
38%
|
1993 |
40%
|
1993 |
39%
|
2003 |
31%
|
2000 |
43%
|
1993 |
40%
|
2012 |
40%
|
2000 |
36%
|
2000 |
40%
|
1993 |
40%
|
1993 |
42%
|
2004 |
30%
|
2000 |
44%
|
1998 |
42%
|
1993 |
39%
|
2000 |
44%
|
2000 |
37%
|
1998 |
43%
|
2000 |
41%
|
2000 |
39%
|
2001 |
48%
|
1998 |
45%
|
2000 |
43%
|
2000 |
40%
|
1998 |
37%
|
2011 |
67%
|
2003 |
46%
|
2011 |
60%
|
2003 |
38%
|
1997 |
49%
|
1997 |
50%
|
2011 |
55%
|
2004 |
38%
|
2003 |
45%
|
1997 |
58%
|
2003 |
36%
|
1997 |
49%
|
2003 |
40%
|
1997 |
40%
|
1997 |
50%
|