YearPToutPBase 100
201189.55%100
201293.24%100.9
201392.82%101.8
201489.21%102.8
201573.78%103.7
201675.03%104.6
201796.06%105.5
2018100%106.4
201995.43%107.4
202097.93%108.3
202192.99%109.2
Evolution : 9 % entre 2011 et 2021 soit 0.80 % de gain par an.