YearPToutPBase 100
201197.28%100
201294.96%100.4
201395.41%100.8
201497.53%101.2
201595.86%101.5
2016100%101.9
201799.82%102.3
201899.88%102.7
201998.49%103.1
202098.6%103.5
202198.97%103.9
Evolution : 3 % entre 2011 et 2021 soit 0.35 % de gain par an.