YearPToutPBase 100
201196.66%100
201297.55%100.3
201398.94%100.5
201496.68%100.8
201596.99%101.1
201697.69%101.3
201796.77%101.6
201897.01%101.8
2019100%102.1
202099.52%102.4
202199.95%102.6
Evolution : 2 % entre 2011 et 2021 soit 0.23 % de gain par an.