YearPToutPBase 100
201296.31%100
201395.26%100.2
201496.28%100.3
201592.94%100.5
201697.95%100.7
201796.18%100.9
2018100%101
201998.11%101.2
202097.34%101.4
202197.67%101.6
202294.9%101.7
Evolution : 1 % entre 2012 et 2022 soit 0.15 % de gain par an.