| Year | PToutP | Base 100 |
|---|---|---|
| 2005 | 88.97% | 100 |
| 2006 | 88.97% | 100 |
| 2007 | 100% | 100.1 |
| 2008 | 98.08% | 100.1 |
| 2009 | 91.02% | 100.2 |
| 2011 | 90.39% | 100.3 |
| 2012 | 92.83% | 100.3 |
| 2013 | 91.19% | 100.4 |
| 2014 | 93.83% | 100.4 |
| 2015 | 93.41% | 100.5 |
| 2016 | 96.58% | 100.5 |
| 2017 | 96.58% | 100.6 |
| 2018 | 96.12% | 100.6 |
| 2019 | 95.06% | 100.7 |
| 2020 | 96.28% | 100.7 |
| 2021 | 96.91% | 100.8 |
| 2022 | 96.09% | 100.8 |
