YearPToutPBase 100
200999.76%100
201098.51%99.2
201197.58%98.4
201297.45%97.6
201395.12%96.8
2014100%96
201598.18%95.2
201696.04%94.4
201796.4%93.6
201893.92%92.8
201995.94%92
202092%91.2
202186.96%90.4
202287.52%89.6
Evolution : -10 % entre 2009 et 2022 soit 0.78 % de perte par an.