YearPToutPBase 100
201095.61%100
201188.16%100.3
201290.78%100.5
201394.52%100.8
201493.51%101.1
201586.61%101.3
2016100%101.6
201794.64%101.9
201897.17%102.1
201993.56%102.4
202091.55%102.7
Evolution : 2 % entre 2010 et 2020 soit 0.24 % de gain par an.