YearPToutPBase 100
201195.91%100
201297.3%100.4
201397.22%100.7
201498.17%101.1
201596.99%101.5
201698.2%101.9
201799.42%102.2
201899.98%102.6
201999.03%103
202099.27%103.4
2021100%103.7
Evolution : 3 % entre 2011 et 2021 soit 0.33 % de gain par an.