YearPToutPBase 100
201192.07%100
201293.67%100.3
201393.31%100.6
201494.24%100.9
201596%101.2
201695.83%101.5
2017100%101.9
201896.53%102.2
201996.95%102.5
202097.88%102.8
202193.09%103.1
202295.44%103.4
Evolution : 3 % entre 2011 et 2022 soit 0.28 % de gain par an.