YearPToutPBase 100
201195.33%100
201297.3%100.3
201396.22%100.6
201498.31%101
201598.38%101.3
201696.08%101.6
2017100%101.9
201899.86%102.2
201998.57%102.6
202097.64%102.9
Evolution : 2 % entre 2011 et 2020 soit 0.29 % de gain par an.