YearPToutPBase 100
200997.01%100
201095.06%100.1
201194.77%100.3
201293.63%100.4
201392.75%100.6
201490.16%100.7
201589.03%100.9
201689.42%101
201795.69%101.2
2018100%101.3
201997.24%101.5
202095.55%101.6
Evolution : 1 % entre 2009 et 2020 soit 0.13 % de gain par an.