YearPToutPBase 100
200997.38%100
201096.68%100.2
201189.68%100.3
201288.92%100.5
201389.08%100.6
201486.44%100.8
201585.24%101
201698.44%101.1
201782.3%101.3
2018100%101.5
201998.75%101.6
202095.56%101.8
202191.47%101.9
Evolution : 1 % entre 2009 et 2021 soit 0.14 % de gain par an.