YearPToutPBase 100
201198.21%100
201299.09%98.7
2013100%97.4
201497.48%96
201596.72%94.7
201698.29%93.4
201778.38%92.1
201897.09%90.8
201993.73%89.4
202089.97%88.1
202189.5%86.8
202281.33%85.5
Evolution : -14 % entre 2011 et 2022 soit 1.30 % de perte par an.