| Year | PToutP | Base 100 |
|---|---|---|
| 2009 | 100% | 100 |
| 2010 | 93.8% | 100.1 |
| 2011 | 90.13% | 100.3 |
| 2012 | 94.62% | 100.4 |
| 2013 | 92.37% | 100.5 |
| 2014 | 95.26% | 100.7 |
| 2015 | 94.71% | 100.8 |
| 2016 | 98.91% | 100.9 |
| 2017 | 97.09% | 101.1 |
| 2018 | 92.17% | 101.2 |
| 2019 | 90.89% | 101.3 |
| 2020 | 95.17% | 101.5 |
| 2021 | 97.88% | 101.6 |
| 2022 | 98.76% | 101.7 |
