| Year | PToutP | Base 100 |
|---|---|---|
| 2007 | 99.31% | 100 |
| 2008 | 100% | 100 |
| 2009 | 92.75% | 100.1 |
| 2011 | 94.6% | 100.2 |
| 2013 | 95.31% | 100.3 |
| 2014 | 96.05% | 100.3 |
| 2015 | 95.88% | 100.4 |
| 2016 | 93.14% | 100.4 |
| 2017 | 97.46% | 100.5 |
| 2018 | 94.39% | 100.5 |
| 2019 | 96.32% | 100.6 |
| 2020 | 94.02% | 100.6 |
| 2021 | 97.13% | 100.7 |
| 2022 | 98.32% | 100.7 |
