YearPToutPBase 100
201288.86%100
201391.96%100.2
201498.74%100.5
201598.37%100.7
2016100%100.9
201796.94%101.1
201892.59%101.4
201995.34%101.6
202093.67%101.8
202195.59%102
Evolution : 2 % entre 2012 et 2021 soit 0.20 % de gain par an.