| Year | Value (%) |
|---|---|
|
2021 |
16.27 |
|
2020 |
16.27 |
|
2019 |
15.76 |
|
2018 |
18.43 |
|
2017 |
14.93 |
|
2016 |
14.78 |
|
2015 |
13.53 |
|
2014 |
16.49 |
|
2013 |
16.82 |
|
2012 |
12.14 |