YearPToutPBase 100
201196.31%100
201298.07%100.3
201397.28%100.5
201496.63%100.8
201597.68%101.1
201698%101.3
201799.46%101.6
201897.86%101.9
201998.33%102.1
202098.68%102.4
2021100%102.7
Evolution : 2 % entre 2011 et 2021 soit 0.24 % de gain par an.