YearPToutPBase 100
201194.76%100
201294.28%100.4
201392.29%100.8
201493.16%101.2
201595.51%101.6
201695.23%102
201799.5%102.4
201892.79%102.8
201996.33%103.2
202094.38%103.6
2021100%104.1
202298.59%104.5
202397.04%104.9
Evolution : 4 % entre 2011 et 2023 soit 0.37 % de gain par an.