YearPToutPBase 100
201196.38%100
201295.65%100.4
201395.56%100.8
201497.8%101.2
201597.14%101.7
201698.67%102.1
201798.52%102.5
201899.02%102.9
201999.87%103.3
2020100%103.7
202198.26%104.1
Evolution : 4 % entre 2011 et 2021 soit 0.37 % de gain par an.