YearPToutPBase 100
201192.16%100
201292.73%100.3
201393.75%100.5
201491.47%100.8
201594.67%101
201692.14%101.3
201793.47%101.6
201864.99%101.8
201998.28%102.1
202099.61%102.4
2021100%102.6
Evolution : 2 % entre 2011 et 2021 soit 0.23 % de gain par an.