YearPToutPBase 100
201198.53%100
201298%98.5
201399.52%97
201498.88%95.5
201598.35%94
201699.15%92.5
201798.34%91
2018100%89.5
201985.97%88
202079.69%86.5
202187.01%85
Evolution : -15 % entre 2011 et 2021 soit 1.47 % de perte par an.