| 1980 |
87%
|
| 2008 |
74%
|
| 1995 |
83%
|
| 2001 |
81%
|
| 2010 |
83%
|
| 2004 |
80%
|
| 2015 |
81%
|
| 1999 |
79%
|
| 2017 |
84%
|
| 2013 |
72%
|
| 2020 |
80%
|
| 2018 |
75%
|
| 2019 |
77%
|
| 1978 |
67%
|
| 2020 |
74%
|
| 1980 |
68%
|
| 1997 |
67%
|
| 2006 |
76%
|
| 1980 |
62%
|
| 1994 |
67%
|
| 1993 |
67%
|
| 1990 |
67%
|
| 1991 |
67%
|
| 1992 |
67%
|
| 1995 |
67%
|
| 1987 |
55%
|
| 2017 |
74%
|
| 2020 |
32%
|
