YearPToutPBase 100
2011100%100
201253.85%96.8
201354.51%93.6
201454.34%90.4
201553.92%87.2
201652.96%84
201754.35%80.8
201854.33%77.5
201953%74.3
202053.88%71.1
202152.11%67.9
Evolution : -32 % entre 2011 et 2021 soit 3.46 % de perte par an.