| Year | PToutP | Base 100 |
|---|---|---|
| 2009 | 85.66% | 100 |
| 2010 | 91.7% | 100.6 |
| 2011 | 94.21% | 101.1 |
| 2012 | 95.13% | 101.7 |
| 2013 | 93.56% | 102.3 |
| 2014 | 96.17% | 102.9 |
| 2015 | 97.22% | 103.4 |
| 2016 | 95.04% | 104 |
| 2017 | 100% | 104.6 |
| 2018 | 96.93% | 105.2 |
| 2019 | 94.91% | 105.7 |
| 2020 | 96.13% | 106.3 |
| 2021 | 94.91% | 106.9 |
| 2022 | 98.12% | 107.5 |
