| 1979 |
63%
|
| 1997 |
62%
|
| 1986 |
56%
|
| 1988 |
64%
|
| 1994 |
56%
|
| 1998 |
55%
|
| 2005 |
65%
|
| 2016 |
49%
|
| 1991 |
55%
|
| 2015 |
47%
|
| 1984 |
66%
|
| 1984 |
47%
|
| 2001 |
58%
|
| 1972 |
47%
|
