YearPToutPBase 100
201195.13%100
201296.2%100.7
201392.6%101.4
201495.15%102.1
201595.93%102.8
201695.56%103.4
201798.03%104.1
201899.89%104.8
201999.64%105.5
202099.69%106.2
2021100%106.9
Evolution : 6 % entre 2011 et 2021 soit 0.61 % de gain par an.