YearPToutPBase 100
201293.56%100
201395.7%100.7
201492.9%101.4
201594.89%102.1
201694.6%102.8
201799.81%103.5
201899.73%104.2
2019100%104.9
202095.91%105.6
202199.28%106.3
Evolution : 6 % entre 2012 et 2021 soit 0.61 % de gain par an.