YearPToutPBase 100
201193.88%100
201294.35%100.6
201393.33%101.3
201491.69%101.9
201591.85%102.6
201689.46%103.2
201783.87%103.9
201899.31%104.5
201999.78%105.2
2020100%105.8
202196.97%106.5
Evolution : 6 % entre 2011 et 2021 soit 0.57 % de gain par an.