YearPToutPBase 100
201096.58%100
201194.9%100.2
201295.62%100.4
201396.56%100.6
201496.9%100.8
201598.02%101
201698.36%101.2
2017100%101.4
201899.29%101.5
201997.58%101.7
202096.81%101.9
202196.49%102.1
Evolution : 2 % entre 2010 et 2021 soit 0.17 % de gain par an.