YearPToutPBase 100
201195.25%100
201297.26%100.2
201397%100.5
201494.7%100.7
201583.71%100.9
201699.46%101.2
201798.54%101.4
2018100%101.6
201999.14%101.9
202090.8%102.1
202197.66%102.4
202298.28%102.6
Evolution : 2 % entre 2011 et 2022 soit 0.21 % de gain par an.