YearPToutPBase 100
201197.75%100
201296.94%100.3
201399.04%100.5
201494.32%100.8
201596.82%101
201698.09%101.3
201799.86%101.6
201899.12%101.8
2019100%102.1
202097.96%102.3
Evolution : 2 % entre 2011 et 2020 soit 0.23 % de gain par an.