YearPToutPBase 100
201195.72%100
201295.64%100.3
201397.88%100.5
201497.35%100.8
201598.28%101.1
201690.26%101.3
201795.75%101.6
2018100%101.9
201998.56%102.2
202098.05%102.4
202198.67%102.7
202298.32%103
Evolution : 3 % entre 2011 et 2022 soit 0.25 % de gain par an.