YearPToutPBase 100
201094.35%100
201194.31%100.6
201293.65%101.1
201391.18%101.7
201491.61%102.2
201597.58%102.8
201691.54%103.3
201797.71%103.9
2018100%104.4
201998.6%105
202096.74%105.5
202197.39%106.1
Evolution : 6 % entre 2010 et 2021 soit 0.49 % de gain par an.