| Year | PToutP | Base 100 |
|---|---|---|
| 2009 | 94.66% | 100 |
| 2010 | 100% | 99.9 |
| 2011 | 96.45% | 99.8 |
| 2012 | 97.47% | 99.7 |
| 2013 | 98.24% | 99.6 |
| 2014 | 98.21% | 99.6 |
| 2015 | 98.1% | 99.5 |
| 2016 | 96.26% | 99.4 |
| 2017 | 98.34% | 99.3 |
| 2018 | 97.71% | 99.2 |
| 2019 | 96.66% | 99.1 |
| 2020 | 97.14% | 99 |
| 2021 | 95.02% | 98.9 |
| 2022 | 96.09% | 98.8 |
