YearPToutPBase 100
201195.22%100
201293.8%100.4
201396.24%100.9
201495.8%101.3
201598.47%101.7
201699.85%102.2
201798.42%102.6
201898.81%103
201997.43%103.4
2020100%103.9
202197.38%104.3
Evolution : 4 % entre 2011 et 2021 soit 0.38 % de gain par an.