YearPToutPBase 100
201096.82%100
201197.24%100.2
201294.68%100.4
201393.29%100.6
201495.91%100.7
201598.96%100.9
201697.8%101.1
201796.59%101.3
2018100%101.5
201994.11%101.7
202096.35%101.9
202199.44%102.1
Evolution : 2 % entre 2010 et 2021 soit 0.17 % de gain par an.