YearPToutPBase 100
201171.75%100
201295.74%101.4
201394.9%102.9
201495.04%104.3
201596.09%105.7
201699.33%107.2
2017100%108.6
201899.25%110
201992.7%111.5
202095.45%112.9
202198.61%114.3
Evolution : 14 % entre 2011 et 2021 soit 1.22 % de gain par an.