YearPToutPBase 100
201198.29%100
201296.91%100.3
201394.55%100.5
201495.89%100.8
201595.73%101
201695.74%101.3
201795.98%101.6
2018100%101.8
201999.47%102.1
202098.44%102.3
202197.9%102.6
Evolution : 2 % entre 2011 et 2021 soit 0.23 % de gain par an.