| 2013 |
71%
|
| 2018 |
76%
|
| 1989 |
74%
|
| 1992 |
71%
|
| 2006 |
53%
|
| 1999 |
49%
|
| 1981 |
78%
|
| 1985 |
72%
|
| 2001 |
67%
|
| 1985 |
77%
|
| 1987 |
65%
|
| 1983 |
62%
|
| 1995 |
57%
|
| 1976 |
61%
|
| 1983 |
55%
|
| 1987 |
49%
|
