1989 |
63%
|
1986 |
72%
|
1985 |
80%
|
1987 |
80%
|
1986 |
80%
|
1984 |
80%
|
1990 |
76%
|
1987 |
76%
|
1987 |
70%
|
1986 |
77%
|
1985 |
77%
|
1983 |
72%
|
1983 |
80%
|
1990 |
73%
|
1991 |
73%
|
1984 |
79%
|
1986 |
77%
|
1989 |
75%
|