YearPToutPBase 100
201087.29%100
201192.87%100.1
201293.85%100.2
201394.13%100.4
201494.66%100.5
201595.96%100.6
201699.86%100.7
2017100%100.8
201896.16%101
201997.13%101.1
202093.48%101.2
202190.17%101.3
202290.55%101.5
Evolution : 1 % entre 2010 et 2022 soit 0.11 % de gain par an.