YearPToutPBase 100
201195.51%100
201295.02%100.8
201382.25%101.5
201497.32%102.3
201597.57%103.1
201699.76%103.8
201799.28%104.6
2018100%105.4
201998.79%106.1
202098.47%106.9
202197.08%107.7
Evolution : 7 % entre 2011 et 2021 soit 0.68 % de gain par an.