YearPToutPBase 100
201194.09%100
201294.5%100.3
201392.73%100.6
201493.83%100.9
201594.17%101.3
201691.54%101.6
201794.23%101.9
201891.48%102.2
201992.54%102.5
2020100%102.8
202197.19%103.2
Evolution : 3 % entre 2011 et 2021 soit 0.29 % de gain par an.