| Year | PToutP | Base 100 |
|---|---|---|
| 2009 | 86.06% | 100 |
| 2010 | 100% | 100 |
| 2011 | 97.56% | 100 |
| 2012 | 96.99% | 100.1 |
| 2013 | 95.11% | 100.1 |
| 2014 | 97.23% | 100.1 |
| 2015 | 97.56% | 100.1 |
| 2016 | 92.89% | 100.1 |
| 2017 | 95.97% | 100.2 |
| 2018 | 91.69% | 100.2 |
| 2019 | 97.04% | 100.2 |
| 2020 | 96.08% | 100.2 |
| 2021 | 98.02% | 100.2 |
| 2022 | 91.35% | 100.3 |
