| Year | Value (%) |
|---|---|
|
2021 |
7.87 |
|
2020 |
6.71 |
|
2019 |
7.92 |
|
2018 |
12.66 |
|
2017 |
14.04 |
|
2016 |
13.78 |
|
2015 |
12.71 |
|
2014 |
13.53 |
|
2013 |
13.75 |
|
2012 |
12.83 |