YearPToutPBase 100
201194.8%100
201295.58%100.4
201395.94%100.9
201495.25%101.3
201599.66%101.7
201698.93%102.2
201796.1%102.6
201898.19%103.1
201999.35%103.5
202097.39%103.9
2021100%104.4
Evolution : 4 % entre 2011 et 2021 soit 0.39 % de gain par an.