YearPToutPBase 100
200997.92%100
201093.28%100.3
201195.99%100.6
201293.43%101
201390.04%101.3
201498.51%101.6
201599.48%101.9
201697.2%102.2
2017100%102.6
201896.55%102.9
201996.93%103.2
202098.14%103.5
202197.8%103.8
Evolution : 3 % entre 2009 et 2021 soit 0.29 % de gain par an.