| Year | PToutP | Base 100 |
|---|---|---|
| 2009 | 100% | 100 |
| 2010 | 95.6% | 98.9 |
| 2011 | 85.24% | 97.8 |
| 2012 | 81.77% | 96.8 |
| 2013 | 80.56% | 95.7 |
| 2014 | 79.65% | 94.6 |
| 2015 | 80.92% | 93.5 |
| 2016 | 81.13% | 92.4 |
| 2017 | 83.67% | 91.4 |
| 2018 | 84.26% | 90.3 |
| 2019 | 85.21% | 89.2 |
| 2020 | 84.25% | 88.1 |
| 2021 | 79.93% | 87 |
| 2022 | 75.47% | 85.9 |
