1977 |
86%
|
1980 |
87%
|
1983 |
83%
|
1999 |
65%
|
2005 |
74%
|
2002 |
63%
|
1992 |
72%
|
1992 |
72%
|
1995 |
66%
|
1996 |
72%
|
1995 |
71%
|
1994 |
67%
|