| Year | PToutP | Base 100 |
|---|---|---|
| 2010 | 96.62% | 100 |
| 2011 | 96.76% | 100.2 |
| 2012 | 97.69% | 100.4 |
| 2013 | 98.06% | 100.6 |
| 2014 | 99.33% | 100.8 |
| 2015 | 99.61% | 100.9 |
| 2016 | 100% | 101.1 |
| 2017 | 99.73% | 101.3 |
| 2018 | 99.62% | 101.5 |
| 2019 | 98.87% | 101.7 |
| 2020 | 98.19% | 101.9 |
| 2021 | 99.54% | 102.1 |
| 2022 | 99.02% | 102.3 |
