YearPToutPBase 100
2011100%100
201252.93%96.8
201352.92%93.6
201454.08%90.4
201553.61%87.1
201653.3%83.9
201753.88%80.7
201853.15%77.5
201952.23%74.3
202053.49%71.1
202151.92%67.9
Evolution : -32 % entre 2011 et 2021 soit 3.46 % de perte par an.