YearPToutPBase 100
201095.33%100
201196.03%98.5
201296.7%97.1
201397.89%95.6
2014100%94.2
201596.83%92.7
201694.67%91.3
201792.18%89.8
201887.44%88.4
201985.81%86.9
202083.3%85.5
202181.86%84
Evolution : -16 % entre 2010 et 2021 soit 1.44 % de perte par an.