YearPToutPBase 100
201394.73%100
201496.13%100.2
201596.22%100.5
201693.42%100.7
201795.18%101
2018100%101.2
201996.6%101.5
202096.06%101.7
202196.45%102
Evolution : 2 % entre 2013 et 2021 soit 0.22 % de gain par an.