YearPToutPBase 100
201295.8%100
201394.18%100.5
201491.85%101
201596.68%101.5
201693.68%101.9
201799.19%102.4
201896.19%102.9
201998.08%103.4
2020100%103.9
202195.78%104.4
Evolution : 4 % entre 2012 et 2021 soit 0.43 % de gain par an.