YearPToutPBase 100
201189.34%100
201290.45%100.3
201390.33%100.6
201488.97%101
201588.15%101.3
201689.78%101.6
201788.61%101.9
201888.47%102.2
2019100%102.6
202095.09%102.9
202186.21%103.2
Evolution : 3 % entre 2011 et 2021 soit 0.29 % de gain par an.