YearPToutPBase 100
201195.64%100
201294.43%100.4
201398.58%100.7
201498.41%101.1
201595.73%101.4
201697.7%101.8
201797.41%102.1
201897.74%102.5
201996.62%102.8
202099.58%103.2
2021100%103.5
Evolution : 3 % entre 2011 et 2021 soit 0.31 % de gain par an.