| Year | Value (%) |
|---|---|
|
2021 |
1.65 |
|
2020 |
1.65 |
|
2019 |
1.65 |
|
2018 |
1.65 |
|
2017 |
1.68 |
|
2016 |
1.99 |
|
2015 |
2.47 |
|
2014 |
2.31 |
|
2013 |
2.89 |
|
2012 |
3.47 |