YearPToutPBase 100
201098.17%100
201195.73%98.6
201297.32%97.2
201397.61%95.8
201496.14%94.4
201596.59%93
201697.29%91.6
2017100%90.2
201894.25%88.8
201984.77%87.4
202083.38%86
202182.52%84.6
202282.09%83.2
Evolution : -16 % entre 2010 et 2022 soit 1.40 % de perte par an.