YearPToutPBase 100
201199.66%100
201291.64%100.2
201397.05%100.5
201499.82%100.7
201598.12%100.9
201697.36%101.2
201798.71%101.4
201899.2%101.7
201997.99%101.9
202096.95%102.1
2021100%102.4
Evolution : 2 % entre 2011 et 2021 soit 0.22 % de gain par an.