YearPToutPBase 100
201190.87%100
201290.74%101.3
201384.36%102.6
201489.13%103.9
201588.06%105.1
201691.03%106.4
201795.38%107.7
201898.83%109
2019100%110.3
202097.23%111.6
202195.64%112.9
Evolution : 12 % entre 2011 et 2021 soit 1.11 % de gain par an.