YearPToutPBase 100
200996.08%100
201095.93%100.2
201194.53%100.4
201295.69%100.6
201396.69%100.8
201496.36%101
201598.68%101.1
201697.56%101.3
201798.11%101.5
201897.3%101.7
201995.09%101.9
2020100%102.1
202196.37%102.3
Evolution : 2 % entre 2009 et 2021 soit 0.18 % de gain par an.