YearPToutPBase 100
201196.4%100
201294.64%100.5
201389.25%101
201495%101.5
201592.09%102
2016100%102.6
201799.37%103.1
201896.91%103.6
201996.33%104.1
202096.77%104.6
202199.69%105.1
202298.07%105.6
Evolution : 5 % entre 2011 et 2022 soit 0.46 % de gain par an.