| Year | Value (%) |
|---|---|
|
2021 |
35.19 |
|
2020 |
35.19 |
|
2019 |
34.99 |
|
2018 |
34.79 |
|
2017 |
36.6 |
|
2016 |
34.94 |
|
2015 |
33.28 |
|
2014 |
37.97 |
|
2013 |
40.24 |
|
2012 |
44.17 |