YearPToutPBase 100
200994.5%100
201096.12%100.7
201188.27%101.5
201285.92%102.2
201392.64%102.9
201497.82%103.7
201597.18%104.4
201698.21%105.2
201796.97%105.9
201895.23%106.6
201997.32%107.4
2020100%108.1
202199.49%108.8
Evolution : 8 % entre 2009 et 2021 soit 0.65 % de gain par an.