YearPToutPBase 100
201190.91%100
201296.06%100.6
201395.42%101.2
201495.38%101.8
201592.37%102.4
201685.18%103
201797.45%103.6
201896.9%104.2
201996.94%104.8
202096.73%105.4
2021100%106
Evolution : 6 % entre 2011 et 2021 soit 0.53 % de gain par an.