| Year | Value (%) |
|---|---|
|
2021 |
7.9 |
|
2020 |
7.9 |
|
2019 |
7.9 |
|
2018 |
7.9 |
|
2017 |
7.9 |
|
2016 |
7.9 |
|
2015 |
7.9 |
|
2014 |
7.9 |
|
2013 |
7.9 |
|
2012 |
8.1 |