| Year | PToutP | Base 100 |
|---|---|---|
| 2009 | 88.81% | 100 |
| 2010 | 93.91% | 100.5 |
| 2011 | 95.09% | 101 |
| 2012 | 97.21% | 101.5 |
| 2013 | 96.29% | 102.1 |
| 2014 | 97.41% | 102.6 |
| 2015 | 98.68% | 103.1 |
| 2016 | 100% | 103.6 |
| 2017 | 99.24% | 104.1 |
| 2018 | 98.47% | 104.6 |
| 2019 | 96.98% | 105.2 |
| 2020 | 97.58% | 105.7 |
| 2021 | 99.33% | 106.2 |
| 2022 | 98.22% | 106.7 |
