YearPToutPBase 100
200895.19%100
2009100%100.1
201090.47%100.2
201191.73%100.3
201294.84%100.4
201393.53%100.5
201495.04%100.6
201594.33%100.8
201694.51%100.9
201794.11%101
201895.56%101.1
201995.56%101.2
202095.89%101.3
202196.73%101.4
Evolution : 1 % entre 2008 et 2021 soit 0.10 % de gain par an.