YearPToutPBase 100
201199.21%100
2012100%98.6
201398.85%97.2
201499.73%95.8
201597.99%94.4
201694.4%93
201792.61%91.7
201890.54%90.3
201996.37%88.9
202089.85%87.5
202182.4%86.1
Evolution : -13 % entre 2011 et 2021 soit 1.35 % de perte par an.