YearPToutPBase 100
201198.46%100
2012100%95.5
201399.55%90.9
201498.19%86.4
201597.69%81.9
201695.42%77.4
201795.68%72.8
201887.57%68.3
201976.97%63.8
202065.96%59.2
202154.22%54.7
202237.95%50.2
Evolution : -49 % entre 2011 et 2022 soit 5.58 % de perte par an.