YearPToutPBase 100
201190.89%100
201288.9%100.9
201389.66%101.8
201495.44%102.6
201597.99%103.5
201698.42%104.4
201796%105.3
201897.5%106.1
201994.42%107
202095.32%107.9
2021100%108.8
Evolution : 8 % entre 2011 et 2021 soit 0.77 % de gain par an.