YearPToutPBase 100
200994.48%100
201096.73%100.1
201195.11%100.2
201293.86%100.4
201394.27%100.5
201493.54%100.6
201599.55%100.7
2016100%100.9
201797.47%101
201894.92%101.1
201995.32%101.2
202097.02%101.4
202194.98%101.5
Evolution : 1 % entre 2009 et 2021 soit 0.11 % de gain par an.