YearPToutPBase 100
201199.53%100
2012100%96.4
201399.95%92.9
201498.61%89.3
201598.28%85.8
201694.37%82.2
201797.81%78.6
201892.59%75.1
201989.34%71.5
202066.99%68
202149.34%64.4
Evolution : -35 % entre 2011 et 2021 soit 3.92 % de perte par an.