YearPToutPBase 100
2011100%100
201298.49%98.6
201398.87%97.2
201498.98%95.9
201599.53%94.5
201698.84%93.1
201795.74%91.7
201893.54%90.4
201992.05%89
202083.28%87.6
Evolution : -12 % entre 2011 et 2020 soit 1.32 % de perte par an.