1990 |
55%
|
1990 |
60%
|
1991 |
81%
|
1992 |
66%
|
1989 |
95%
|
1992 |
71%
|
1991 |
71%
|
1990 |
78%
|
1992 |
--
|
1993 |
--
|
1990 |
--
|