YearPToutPBase 100
201194.92%100
201290.9%100.5
201394.17%101
201496.22%101.5
201598.16%102
201697.72%102.5
201798.62%103
201899.31%103.6
2019100%104.1
202094.29%104.6
202197.9%105.1
Evolution : 5 % entre 2011 et 2021 soit 0.45 % de gain par an.