YearPToutPBase 100
201188%100
201291.96%100.5
201388.27%100.9
201493.23%101.4
201593.38%101.9
201693.42%102.4
201792.59%102.8
201891.87%103.3
201992.05%103.8
202086.67%104.3
2021100%104.7
Evolution : 4 % entre 2011 et 2021 soit 0.42 % de gain par an.