YearPToutPBase 100
201196.45%100
201296.58%100.3
201397.54%100.7
201498.65%101
201598%101.3
2016100%101.7
201799.5%102
201899.49%102.4
201999.24%102.7
202099.95%103
202199.3%103.4
Evolution : 3 % entre 2011 et 2021 soit 0.30 % de gain par an.