YearPToutPBase 100
201194.9%100
201295.86%100.6
201396.47%101.1
201496.1%101.7
201596.39%102.2
201697.57%102.8
201798.42%103.3
201898.7%103.9
201999.47%104.4
202099.96%105
2021100%105.6
Evolution : 5 % entre 2011 et 2021 soit 0.50 % de gain par an.