| Jaargemiddelde | |
|---|---|
| 2011 | 93.5 | 
| 2012 | 95.3 | 
| 2013 | 96.1 | 
| 2014 | 95.4 | 
| 2015 | 92.5 | 
| 2016 | 92.1 | 
| 2017 | 90.2 | 
| 2018 | 83.5 | 
| 2019 | 91.5 | 
| 2020 | 84.3 | 
| 2021 | 90.1 | 
| 2022 | 90.3 | 
| Jaargemiddelde | |
|---|---|
| 2011 | 93.5 | 
| 2012 | 95.3 | 
| 2013 | 96.1 | 
| 2014 | 95.4 | 
| 2015 | 92.5 | 
| 2016 | 92.1 | 
| 2017 | 90.2 | 
| 2018 | 83.5 | 
| 2019 | 91.5 | 
| 2020 | 84.3 | 
| 2021 | 90.1 | 
| 2022 | 90.3 |