YearPToutPBase 100
201195.32%100
201296.7%100.4
201394.72%100.8
201495.19%101.2
201594.35%101.6
201697.91%102
201795.2%102.4
201896.33%102.8
201999.27%103.2
202097.02%103.6
2021100%104
Evolution : 4 % entre 2011 et 2021 soit 0.36 % de gain par an.