YearPToutPBase 100
201176.69%100
201274.54%100.9
201373.68%101.7
201473.32%102.6
201573.28%103.5
201676.2%104.4
201773.38%105.2
201873.17%106.1
2019100%107
202075.04%107.9
202174.68%108.7
Evolution : 8 % entre 2011 et 2021 soit 0.76 % de gain par an.