| 1977 |
63%
|
| 2000 |
72%
|
| 2015 |
56%
|
| 2016 |
59%
|
| 2004 |
60%
|
| 2003 |
46%
|
| 1982 |
52%
|
| 1979 |
56%
|
| 1982 |
60%
|
| 1981 |
55%
|
| 1982 |
70%
|
| 1982 |
58%
|
