| Year | PToutP | Base 100 |
|---|---|---|
| 2010 | 83.09% | 100 |
| 2011 | 78.47% | 101.8 |
| 2012 | 78.62% | 103.6 |
| 2013 | 75.46% | 105.4 |
| 2014 | 77.73% | 107.2 |
| 2015 | 91.36% | 109 |
| 2016 | 81.3% | 110.8 |
| 2017 | 72.45% | 112.6 |
| 2018 | 97.52% | 114.4 |
| 2019 | 93.81% | 116.2 |
| 2020 | 99.35% | 118 |
| 2021 | 100% | 119.8 |
| 2022 | 95.55% | 121.5 |
| 2023 | 82.59% | 123.3 |
