YearPToutPBase 100
201295.22%100
201396.81%100.3
201497.24%100.7
201598.83%101
201699.69%101.4
201799.89%101.7
201897.19%102.1
2019100%102.4
202098.73%102.8
202199.31%103.1
202299.78%103.5
Evolution : 3 % entre 2012 et 2022 soit 0.31 % de gain par an.