1993 |
82%
|
1995 |
82%
|
1994 |
82%
|
1994 |
82%
|
1990 |
82%
|
1998 |
76%
|
1995 |
76%
|
1997 |
76%
|
1996 |
76%
|
1997 |
73%
|
1994 |
75%
|
1990 |
46%
|
1997 |
49%
|
2014 |
44%
|