YearPToutPBase 100
201195.22%100
201296.03%100.5
201395.01%100.9
201497.03%101.4
201595.78%101.9
201696.18%102.3
201796.7%102.8
201897.75%103.3
201997.24%103.7
202099.97%104.2
2021100%104.7
Evolution : 4 % entre 2011 et 2021 soit 0.42 % de gain par an.