YearPToutPBase 100
201195.1%100
201297.47%100.3
201398.63%100.6
201496.63%100.9
201598.33%101.3
201697.03%101.6
201799.47%101.9
201898.12%102.2
201999.03%102.5
2020100%102.8
202198.71%103.2
Evolution : 3 % entre 2011 et 2021 soit 0.29 % de gain par an.