YearPToutPBase 100
201295.75%100
201397.6%100.2
201491.49%100.3
201596.81%100.5
2016100%100.7
201797.76%100.8
201898.98%101
201994.17%101.2
202099.81%101.4
202195.05%101.5
Evolution : 1 % entre 2012 et 2021 soit 0.15 % de gain par an.