YearPToutPBase 100
201188.69%100
201290.53%100.9
201396.84%101.8
201494.76%102.8
201598.3%103.7
2016100%104.6
201799.91%105.5
201899.09%106.5
201999.34%107.4
202099.63%108.3
202196.65%109.2
Evolution : 9 % entre 2011 et 2021 soit 0.80 % de gain par an.