YearPToutPBase 100
201194.25%100
201291.09%100.6
201393.11%101.2
201495.26%101.8
201596%102.4
201694.7%103
201795.83%103.6
201898.1%104.2
201995.68%104.8
202095.75%105.3
2021100%105.9
Evolution : 5 % entre 2011 et 2021 soit 0.52 % de gain par an.