YearPToutPBase 100
201092.75%100
201192.2%100.2
201293.44%100.4
201393.76%100.6
201494.08%100.8
201595.34%101
201699.65%101.2
201795.69%101.4
201895.63%101.6
201983.39%101.8
202094.91%102
2021100%102.2
Evolution : 2 % entre 2010 et 2021 soit 0.18 % de gain par an.