YearPToutPBase 100
201194.13%100
201297.63%100.4
201398.24%100.7
2014100%101.1
201598.31%101.4
201699.82%101.8
201798.32%102.2
201899.63%102.5
201999.89%102.9
202099.46%103.3
202199.55%103.6
Evolution : 3 % entre 2011 et 2021 soit 0.32 % de gain par an.