YearPToutPBase 100
201098.67%100
201196.46%100.4
201291.49%100.7
201394.91%101.1
201494.7%101.4
201594.52%101.8
201694.8%102.2
201796.62%102.5
201899.66%102.9
201998.68%103.2
2020100%103.6
202197.37%104
Evolution : 4 % entre 2010 et 2021 soit 0.33 % de gain par an.