YearPToutPBase 100
201286.6%100
201387.05%101.9
201487.96%103.9
201589.01%105.8
201693.66%107.7
201798.86%109.7
201898.55%111.6
201996.17%113.6
2020100%115.5
202198.79%117.4
Evolution : 17 % entre 2012 et 2021 soit 1.62 % de gain par an.