YearPToutPBase 100
201188.03%100
201286.79%98.3
201381.32%96.7
201490.35%95
201590.73%93.4
201691.1%91.7
201791.2%90
201895.43%88.4
201986.81%86.7
2020100%85
202137.97%83.4
Evolution : -16 % entre 2011 et 2021 soit 1.64 % de perte par an.