YearPToutPBase 100
200896.02%100
200989.85%100.2
201094.35%100.5
201188.06%100.7
201291.65%101
2013100%101.2
201492.6%101.5
201594.66%101.7
201696.01%102
201793.62%102.2
201895.19%102.4
201990.87%102.7
202097.35%102.9
202196.15%103.2
Evolution : 3 % entre 2008 et 2021 soit 0.23 % de gain par an.