YearPToutPBase 100
201195.72%100
201296.3%98.3
201389.9%96.5
2014100%94.8
201598.2%93
201688.76%91.3
201783.86%89.5
201883.37%87.8
201979.84%86
202076.19%84.3
202189.81%82.6
Evolution : -17 % entre 2011 et 2021 soit 1.72 % de perte par an.