YearPToutPBase 100
201091.76%100
201190.85%100.7
201291.31%101.4
201394.32%102.1
201496.52%102.8
201595.86%103.5
201697.28%104.2
201796.51%105
201896.78%105.7
201996.93%106.4
2020100%107.1
202196.34%107.8
Evolution : 7 % entre 2010 et 2021 soit 0.63 % de gain par an.