YearPToutPBase 100
200891.66%100
200995.03%100.9
201087.2%101.7
201189.58%102.6
201290.94%103.4
201391.67%104.3
201493.35%105.1
201598.35%106
201697.26%106.9
201798.79%107.7
201898.29%108.6
201995.73%109.4
2020100%110.3
202199.12%111.2
Evolution : 11 % entre 2008 et 2021 soit 0.76 % de gain par an.