YearPToutPBase 100
201191.26%100
201291.94%100.4
201394.54%100.8
201493.47%101.2
201594.37%101.6
201693.85%102
201796.42%102.4
201875.54%102.8
201998.91%103.2
2020100%103.6
202196.9%103.9
Evolution : 3 % entre 2011 et 2021 soit 0.35 % de gain par an.