YearPToutPBase 100
201194.91%100
201295.81%100.4
201394.99%100.9
201494.65%101.3
201594.83%101.8
201697.23%102.2
201796.6%102.6
201896.31%103.1
201997.08%103.5
202098%104
2021100%104.4
Evolution : 4 % entre 2011 et 2021 soit 0.39 % de gain par an.