YearPToutPBase 100
201197.94%100
201296.89%100.1
201396.06%100.2
201497.51%100.4
201597.4%100.5
201698.53%100.6
201796.68%100.7
201898.77%100.9
201996.14%101
202097.1%101.1
2021100%101.2
Evolution : 1 % entre 2011 et 2021 soit 0.11 % de gain par an.