1999 |
79%
|
1960 |
91%
|
1997 |
84%
|
1996 |
69%
|
1972 |
79%
|
1971 |
79%
|
2000 |
67%
|
1997 |
69%
|
1968 |
72%
|
1996 |
58%
|
1994 |
39%
|
1993 |
39%
|