2013 |
74%
|
2010 |
77%
|
2019 |
68%
|
2015 |
66%
|
2018 |
64%
|
1996 |
66%
|
1991 |
74%
|
2019 |
64%
|
2020 |
59%
|
2017 |
56%
|
1994 |
44%
|