YearPToutPBase 100
2008100%100
200997.37%98.6
201093.92%97.3
201187.06%95.9
201288.75%94.6
201383.76%93.2
201484.96%91.8
201580.56%90.5
201674.35%89.1
201777.81%87.8
201879.96%86.4
201975.42%85.1
202079.24%83.7
202186.47%82.3
202282.53%81
Evolution : -19 % entre 2008 et 2022 soit 1.39 % de perte par an.