YearPToutPBase 100
201231.69%100
201326.55%95.5
2014100%91
201526.92%86.5
201627.88%81.9
201727.36%77.4
201823.53%72.9
201927.06%68.4
202028.21%63.9
202127.58%59.4
202230.74%54.9
Evolution : -45 % entre 2012 et 2022 soit 5.31 % de perte par an.