YearPToutPBase 100
201195.94%100
201294.37%100.3
201394.93%100.6
201496.43%101
201598.44%101.3
201696.91%101.6
201799.66%101.9
201896.33%102.2
2019100%102.6
202099.79%102.9
202195.11%103.2
Evolution : 3 % entre 2011 et 2021 soit 0.29 % de gain par an.