YearPToutPBase 100
201296.68%100
201392.7%100.9
201495.09%101.9
201576.46%102.8
201699.13%103.8
201798.34%104.7
201899.36%105.7
201996.95%106.6
202097.75%107.6
2021100%108.5
Evolution : 8 % entre 2012 et 2021 soit 0.82 % de gain par an.