| Year | Value (%) |
|---|---|
|
2021 |
1.45 |
|
2020 |
1.45 |
|
2019 |
1.44 |
|
2018 |
1.43 |
|
2017 |
1.41 |
|
2016 |
1.4 |
|
2015 |
1.39 |
|
2014 |
1.43 |
|
2013 |
1.46 |
|
2012 |
1.5 |