YearPToutPBase 100
201194.49%100
201295.56%100.4
201396.12%100.8
201496.43%101.3
201598.83%101.7
201697.62%102.1
201797.75%102.5
201898.55%102.9
201997.93%103.4
202097.54%103.8
2021100%104.2
Evolution : 4 % entre 2011 et 2021 soit 0.37 % de gain par an.