YearPToutPBase 100
201194.1%100
201296.12%100.5
201395.37%101
201496.83%101.5
201598.3%102
2016100%102.5
201799.87%103
201898.99%103.5
201998.75%104
202099.18%104.5
202198.99%105
Evolution : 5 % entre 2011 et 2021 soit 0.44 % de gain par an.