YearPToutPBase 100
201296.54%100
201397.61%100.2
201497.11%100.3
201596.97%100.5
201698.07%100.7
201796.15%100.8
201895.15%101
201996.14%101.2
202098.72%101.3
2021100%101.5
Evolution : 1 % entre 2012 et 2021 soit 0.15 % de gain par an.