| Year | Value (%) |
|---|---|
|
2021 |
5.71 |
|
2020 |
5.71 |
|
2019 |
5.71 |
|
2018 |
5.78 |
|
2017 |
5.85 |
|
2016 |
5.92 |
|
2015 |
5.99 |
|
2014 |
6.06 |
|
2013 |
6.13 |
|
2012 |
6.2 |