YearPToutPBase 100
201197.45%100
201295.26%100.2
201396.09%100.5
201497.07%100.7
201599.68%100.9
2016100%101.2
201797.69%101.4
201899.43%101.6
201998.98%101.9
202096.58%102.1
Evolution : 2 % entre 2011 et 2020 soit 0.21 % de gain par an.