YearPToutPBase 100
201192.88%100
201291.51%100.8
201391.07%101.6
201491.57%102.4
201595.67%103.3
201699.1%104.1
201797.56%104.9
2018100%105.7
201998.99%106.5
202097.03%107.3
202196.44%108.2
Evolution : 8 % entre 2011 et 2021 soit 0.72 % de gain par an.