YearPToutPBase 100
201196.48%100
201294.32%100.5
201393.86%101.1
201496.94%101.6
201597.59%102.2
201698.91%102.7
201798.93%103.3
201899.99%103.8
2019100%104.4
202098.79%104.9
202199.23%105.5
Evolution : 5 % entre 2011 et 2021 soit 0.49 % de gain par an.