| Year | Value (%) |
|---|---|
|
2021 |
24.11 |
|
2020 |
24.11 |
|
2019 |
24.11 |
|
2018 |
25.16 |
|
2017 |
25.93 |
|
2016 |
22.84 |
|
2015 |
27.88 |
|
2014 |
29.26 |
|
2013 |
23.67 |
|
2012 |
31.45 |