YearPToutPBase 100
201195.78%100
201293.98%100.5
201395.3%100.9
201497.62%101.4
201595.74%101.8
201695.78%102.3
201799.3%102.8
2018100%103.2
201999%103.7
202097.68%104.1
202198.52%104.6
Evolution : 4 % entre 2011 et 2021 soit 0.41 % de gain par an.