YearPToutPBase 100
201094.81%100
201198.31%100.4
201296.12%100.9
201394.66%101.3
201496.45%101.7
201594.75%102.2
201696.46%102.6
201799.13%103
2018100%103.5
201999.5%103.9
202098.8%104.3
Evolution : 4 % entre 2010 et 2020 soit 0.38 % de gain par an.