YearPToutPBase 100
201195.58%100
201297.03%100.3
201397.46%100.6
201498.35%100.9
201598.05%101.3
201697.22%101.6
201799.34%101.9
201899.98%102.2
201999.72%102.5
2020100%102.8
202197.67%103.2
Evolution : 3 % entre 2011 et 2021 soit 0.29 % de gain par an.