1992 |
90%
|
1994 |
90%
|
1993 |
90%
|
1995 |
90%
|
1997 |
84%
|
1998 |
84%
|
1996 |
58%
|
1998 |
58%
|
1996 |
58%
|
1997 |
58%
|
1999 |
56%
|