YearPToutPBase 100
201187.05%100
201290.4%101.1
201391.81%102.2
201489.68%103.3
201591.8%104.5
2016100%105.6
201799.3%106.7
201896.2%107.8
201997.96%108.9
202097.38%110
202195.56%111.1
Evolution : 11 % entre 2011 et 2021 soit 0.96 % de gain par an.