| Year | Value (%) |
|---|---|
|
2021 |
9.73 |
|
2020 |
9.18 |
|
2019 |
8.42 |
|
2018 |
8.5 |
|
2017 |
8.04 |
|
2016 |
8.39 |
|
2015 |
7.83 |
|
2014 |
7.83 |
|
2013 |
7.96 |
|
2012 |
8.1 |