YearPToutPBase 100
201090.3%100
201192.85%100.4
201291.33%100.9
201395.14%101.3
201498.16%101.7
2015100%102.2
201692.91%102.6
201795.01%103
201899.58%103.5
201997.26%103.9
202094.75%104.3
202194.93%104.8
Evolution : 4 % entre 2010 et 2021 soit 0.39 % de gain par an.