YearPToutPBase 100
201194.76%100
201291.93%100.4
201394.52%100.8
201495.61%101.2
201593.41%101.6
201692.61%102
201792.16%102.4
201894.39%102.8
201993.25%103.1
202097.29%103.5
2021100%103.9
Evolution : 3 % entre 2011 et 2021 soit 0.35 % de gain par an.