YearPToutPBase 100
201196.37%100
201294.6%100.6
201389.25%101.1
201494.99%101.7
201592.08%102.3
2016100%102.8
201799.37%103.4
201896.86%104
201996.26%104.5
202096.63%105.1
202199.97%105.7
Evolution : 5 % entre 2011 et 2021 soit 0.51 % de gain par an.