YearPToutPBase 100
201195.07%100
201294.74%100.4
201395.04%100.8
201495.59%101.1
201596.56%101.5
201697.8%101.9
201796.15%102.3
201898.18%102.7
201999.24%103.1
2020100%103.4
202195.36%103.8
Evolution : 3 % entre 2011 et 2021 soit 0.34 % de gain par an.