YearPToutPBase 100
201195.33%100
201296.32%100.2
201396.03%100.5
201499.2%100.7
201596.99%101
201698.17%101.2
201796.78%101.5
201898.11%101.7
2019100%101.9
202098.78%102.2
202196.62%102.4
Evolution : 2 % entre 2011 et 2021 soit 0.22 % de gain par an.