YearPToutPBase 100
201196.64%100
201295.11%100.2
201393.94%100.3
201495.56%100.5
201597.4%100.6
2016100%100.8
201779.65%101
201897.46%101.1
201999.73%101.3
202097.32%101.5
202197.8%101.6
202296.22%101.8
Evolution : 1 % entre 2011 et 2022 soit 0.15 % de gain par an.