YearPToutPBase 100
200994.46%100
201094.08%100.3
201191.65%100.5
201291.67%100.8
201391.5%101.1
201491.33%101.4
201591.63%101.6
201691.48%101.9
201777.49%102.2
2018100%102.4
201998.6%102.7
202098.73%103
202193.94%103.3
Evolution : 3 % entre 2009 et 2021 soit 0.25 % de gain par an.