YearPToutPBase 100
201195.25%100
201294.96%100.3
201394.05%100.7
201496.84%101
201596.37%101.4
201694.15%101.7
201797.15%102.1
201898.07%102.4
201996.89%102.8
2020100%103.1
202196.1%103.5
Evolution : 3 % entre 2011 et 2021 soit 0.31 % de gain par an.