| Year | Value (%) |
|---|---|
|
2021 |
40.05 |
|
2020 |
40.05 |
|
2019 |
34.55 |
|
2018 |
30.76 |
|
2017 |
27.23 |
|
2016 |
27.75 |
|
2015 |
27.69 |
|
2014 |
27.87 |
|
2013 |
28.05 |
|
2012 |
28.23 |