YearPToutPBase 100
201196.09%100
201297.87%100.3
201397.06%100.5
201496.38%100.8
201597.45%101
201697.78%101.3
201799.29%101.6
201897.63%101.8
201998.1%102.1
202098.3%102.4
2021100%102.6
202299.15%102.9
Evolution : 2 % entre 2011 et 2022 soit 0.24 % de gain par an.