YearPToutPBase 100
201193.9%100
201293.03%100.3
201390.56%100.6
201488.24%100.9
201589.11%101.2
201688.68%101.6
201787.63%101.9
201888.85%102.2
201991.28%102.5
202092.6%102.8
2021100%103.1
Evolution : 3 % entre 2011 et 2021 soit 0.28 % de gain par an.