| Year | Value (%) |
|---|---|
|
2021 |
6.42 |
|
2020 |
6.42 |
|
2019 |
6.42 |
|
2018 |
6.05 |
|
2017 |
5.79 |
|
2016 |
5.53 |
|
2015 |
5.27 |
|
2014 |
5.01 |
|
2013 |
4.74 |
|
2012 |
4.48 |