| Year | PToutP | Base 100 |
|---|---|---|
| 2010 | 96.38% | 100 |
| 2011 | 93.11% | 100.1 |
| 2012 | 96.88% | 100.2 |
| 2013 | 90.23% | 100.4 |
| 2014 | 97.64% | 100.5 |
| 2015 | 95.87% | 100.6 |
| 2016 | 99.65% | 100.7 |
| 2017 | 96.72% | 100.8 |
| 2018 | 94.96% | 100.9 |
| 2019 | 96.03% | 101.1 |
| 2020 | 100% | 101.2 |
| 2021 | 96.53% | 101.3 |
| 2022 | 92.73% | 101.4 |
