1992 |
90%
|
1993 |
59%
|
2013 |
35%
|
1996 |
64%
|
2003 |
58%
|
1984 |
61%
|
1981 |
71%
|
1982 |
71%
|
1989 |
46%
|
1999 |
62%
|
1989 |
56%
|