| Year | PToutP | Base 100 |
|---|---|---|
| 2010 | 96.17% | 100 |
| 2011 | 95.35% | 100 |
| 2012 | 97.53% | 100.1 |
| 2013 | 98.23% | 100.1 |
| 2014 | 98.76% | 100.2 |
| 2015 | 96.56% | 100.2 |
| 2016 | 98.59% | 100.3 |
| 2017 | 100% | 100.3 |
| 2018 | 97.85% | 100.4 |
| 2019 | 97.77% | 100.4 |
| 2020 | 98.84% | 100.5 |
| 2021 | 99.2% | 100.5 |
| 2022 | 95.5% | 100.5 |
| 2023 | 96.1% | 100.6 |
