| 1992 |
90%
|
| 1989 |
79%
|
| 1987 |
79%
|
| 1988 |
79%
|
| 1991 |
79%
|
| 1992 |
79%
|
| 1994 |
79%
|
| 1990 |
79%
|
| 1993 |
79%
|
| 1995 |
79%
|
| 1996 |
79%
|
| 1959 |
85%
|
| 1960 |
85%
|
| 1979 |
75%
|
| 1978 |
70%
|
| 2013 |
79%
|
| 2015 |
79%
|
| 2017 |
79%
|
| 1997 |
72%
|
| 1974 |
84%
|
| 1986 |
52%
|
