YearPToutPBase 100
200995.44%100
201098.81%99.4
201194.83%98.8
201299.17%98.1
201398.68%97.5
2014100%96.9
201596.53%96.3
201696.48%95.6
201796.11%95
201890.92%94.4
201988.16%93.8
202091.82%93.1
202192.52%92.5
Evolution : -7 % entre 2009 et 2021 soit 0.60 % de perte par an.