YearPToutPBase 100
201096.11%100
201195.88%100.4
201296.66%100.8
201397.41%101.3
201495.43%101.7
201597.92%102.1
201699.07%102.5
2017100%103
201899.84%103.4
201999.35%103.8
202099.52%104.2
202199.48%104.6
Evolution : 4 % entre 2010 et 2021 soit 0.38 % de gain par an.