YearPToutPBase 100
2011100%100
201295.73%94.2
201388.72%88.4
201492.02%82.6
201591.42%76.8
201690.21%70.9
201781.17%65.1
201871.66%59.3
201963.07%53.5
202048.94%47.7
202124.24%41.9
Evolution : -58 % entre 2011 et 2021 soit 7.60 % de perte par an.