YearPToutPBase 100
201193.09%100
201292.52%100.3
201399.14%100.6
2014100%100.9
201596.46%101.2
201696.13%101.5
201796.66%101.8
201896.32%102.1
201993.8%102.4
202098.69%102.7
202199.08%103
Evolution : 3 % entre 2011 et 2021 soit 0.27 % de gain par an.