YearPToutPBase 100
201192.39%100
201292.25%100.3
201390.17%100.7
201493.58%101
201594.33%101.4
201683.1%101.7
201796.06%102
201886.02%102.4
201993.65%102.7
202091.9%103
2021100%103.4
Evolution : 3 % entre 2011 et 2021 soit 0.30 % de gain par an.