1990 |
61%
|
1992 |
90%
|
1995 |
90%
|
1985 |
75%
|
1986 |
72%
|
1992 |
79%
|
1990 |
79%
|
1985 |
80%
|
1986 |
80%
|
1984 |
80%
|
1998 |
84%
|
1984 |
53%
|
1987 |
76%
|
1994 |
67%
|
1992 |
67%
|
1993 |
67%
|
1987 |
54%
|
1986 |
77%
|
1985 |
77%
|
1994 |
68%
|
1992 |
70%
|
1993 |
70%
|
1997 |
61%
|
1991 |
63%
|
1992 |
63%
|
1986 |
77%
|
1991 |
65%
|
1989 |
48%
|
1990 |
65%
|
1993 |
39%
|
1997 |
51%
|