YearPToutPBase 100
201098.54%100
201196.33%100.3
201296.26%100.6
201395.72%100.9
201495.51%101.2
201595.43%101.4
201696.59%101.7
201797.36%102
2018100%102.3
201999.96%102.6
202098.62%102.9
Evolution : 2 % entre 2010 et 2020 soit 0.26 % de gain par an.