YearPToutPBase 100
201194.26%100
201294.27%100.3
201396.31%100.6
201498.17%100.9
201592.89%101.2
2016100%101.5
201799.02%101.8
201898.98%102.1
201999.26%102.4
202096.74%102.7
202195.17%103
Evolution : 3 % entre 2011 et 2021 soit 0.27 % de gain par an.