| Year | PToutP | Base 100 |
|---|---|---|
| 2009 | 97.79% | 100 |
| 2010 | 92.47% | 98.8 |
| 2011 | 100% | 97.6 |
| 2012 | 95.92% | 96.4 |
| 2013 | 84.43% | 95.2 |
| 2014 | 85.54% | 94.1 |
| 2015 | 92.64% | 92.9 |
| 2016 | 87.18% | 91.7 |
| 2017 | 89.48% | 90.5 |
| 2018 | 97.22% | 89.3 |
| 2019 | 91.24% | 88.1 |
| 2020 | 82.46% | 86.9 |
| 2021 | 79.61% | 85.7 |
| 2022 | 77.6% | 84.6 |
