YearPToutPBase 100
201297.95%100
201394.25%100.5
201497.85%101
201596.35%101.5
201695.06%102
201799.76%102.6
201899.42%103.1
201999.12%103.6
2020100%104.1
Evolution : 4 % entre 2012 et 2020 soit 0.45 % de gain par an.