YearPToutPBase 100
201098.02%100
201194.28%100.3
201295.51%100.6
201390.33%100.8
201490.2%101.1
201589.14%101.4
201694.09%101.7
201785.27%102
201897.17%102.2
2019100%102.5
202098.01%102.8
202196.63%103.1
Evolution : 3 % entre 2010 et 2021 soit 0.25 % de gain par an.