YearPToutPBase 100
201194.4%100
201295.2%100.3
201394.94%100.7
201495.73%101
201597.78%101.4
201698.43%101.7
201785.04%102.1
201899.51%102.4
2019100%102.7
202097.56%103.1
Evolution : 3 % entre 2011 et 2020 soit 0.31 % de gain par an.