YearPToutPBase 100
201192.58%100
201293.41%100.3
201391.21%100.6
201494.36%100.9
201596.08%101.2
2016100%101.5
201797.09%101.8
201897.5%102
201995.62%102.3
202093.45%102.6
202194.46%102.9
Evolution : 2 % entre 2011 et 2021 soit 0.26 % de gain par an.