YearPToutPBase 100
2010100%100
201198.74%98.5
201296.84%97
201398.29%95.6
201495.5%94.1
201593.79%92.6
201693.15%91.1
201789.71%89.6
201891.25%88.2
201987.25%86.7
202085.53%85.2
202182.92%83.7
Evolution : -16 % entre 2010 et 2021 soit 1.47 % de perte par an.