YearPToutPBase 100
201292.4%100
201395.5%100.5
201496.15%101.1
201594.83%101.6
201696.66%102.2
201796.63%102.7
201896.6%103.3
2019100%103.8
202099.09%104.4
202196.37%104.9
Evolution : 4 % entre 2012 et 2021 soit 0.48 % de gain par an.