YearPToutPBase 100
201196.07%100
201296.89%100.4
201395.03%100.8
201495.2%101.2
201596.5%101.5
201698.89%101.9
201797.01%102.3
2018100%102.7
201998.15%103.1
202098.22%103.5
Evolution : 3 % entre 2011 et 2020 soit 0.34 % de gain par an.