YearPToutPBase 100
201168.56%100
201263.76%100.3
201373.75%100.6
2014100%100.9
201544.15%101.2
201672.19%101.4
201773.74%101.7
201872.16%102
201972.19%102.3
202071.3%102.6
202173.16%102.9
Evolution : 2 % entre 2011 et 2021 soit 0.26 % de gain par an.