YearPToutPBase 100
201196.51%100
201296.48%100.3
201398.24%100.6
201496.97%100.9
2015100%101.2
201697.79%101.5
201799.8%101.9
201899.78%102.2
201999.77%102.5
202098.22%102.8
202199.72%103.1
Evolution : 3 % entre 2011 et 2021 soit 0.28 % de gain par an.