YearPToutPBase 100
201192.85%100
201292.25%100.7
201393.83%101.4
201493.5%102.1
201594.28%102.7
201696.71%103.4
201797.87%104.1
201897.56%104.8
201995.36%105.5
202096.69%106.2
2021100%106.9
Evolution : 6 % entre 2011 et 2021 soit 0.61 % de gain par an.