YearPToutPBase 100
201289.32%100
201397%100.6
201495.6%101.3
201595.85%101.9
201696.71%102.5
201798.23%103.1
201896.53%103.8
201996.23%104.4
2020100%105
202197%105.6
Evolution : 5 % entre 2012 et 2021 soit 0.55 % de gain par an.