YearPToutPBase 100
201198.93%100
201296.86%100.1
201395.45%100.3
201497.61%100.4
201598.92%100.6
201696.02%100.7
201799.3%100.9
201899.43%101
2019100%101.2
202099.49%101.3
202196.37%101.4
Evolution : 1 % entre 2011 et 2021 soit 0.13 % de gain par an.