YearPToutPBase 100
201193.84%100
201297.19%100.1
201397.14%100.2
201496.92%100.3
201593.14%100.5
2016100%100.6
201791.49%100.7
201898.41%100.8
201997.51%100.9
202096.24%101
202196.51%101.1
Evolution : 1 % entre 2011 et 2021 soit 0.10 % de gain par an.