YearPToutPBase 100
201185.22%100
201297.88%100.2
2013100%100.5
201496.5%100.7
201594.48%100.9
201694.46%101.1
201792.4%101.4
201890.91%101.6
201994.21%101.8
202096.56%102.1
202197.08%102.3
Evolution : 2 % entre 2011 et 2021 soit 0.21 % de gain par an.