YearPToutPBase 100
201197.53%100
201297.85%99.4
201399.17%98.8
201499.09%98.1
2015100%97.5
201694.64%96.9
201762.19%96.3
201895.61%95.7
201998.39%95
202094.23%94.4
202191.99%93.8
202294.28%93.2
Evolution : -6 % entre 2011 et 2022 soit 0.59 % de perte par an.