YearPToutPBase 100
201096.48%100
201196.49%100.2
201297.4%100.4
201397.99%100.6
201499.18%100.8
201599.46%101
2016100%101.2
201799.73%101.5
201899.62%101.7
201998.65%101.9
202098.1%102.1
202198.67%102.3
Evolution : 2 % entre 2010 et 2021 soit 0.19 % de gain par an.