YearPToutPBase 100
201197.87%100
201298.3%100.1
201396.26%100.2
201498.86%100.4
201598.04%100.5
201699.83%100.6
201799.89%100.7
2018100%100.8
201998.21%101
202099.1%101.1
202197.65%101.2
202299.44%101.3
Evolution : 1 % entre 2011 et 2022 soit 0.11 % de gain par an.