YearPToutPBase 100
201293.95%100
201393.13%100.2
201491.18%100.5
201590.51%100.7
201688.68%100.9
2017100%101.2
201897.74%101.4
201994.88%101.6
202094.5%101.9
202192.52%102.1
202293.68%102.4
Evolution : 2 % entre 2012 et 2022 soit 0.22 % de gain par an.