YearPToutPBase 100
200990.98%100
201088.24%100.6
201194.68%101.2
201293.22%101.8
201398.06%102.5
201498.57%103.1
201599.83%103.7
2016100%104.3
201797.76%104.9
201897.95%105.5
201995.95%106.1
202097.52%106.7
202197.14%107.4
Evolution : 7 % entre 2009 et 2021 soit 0.55 % de gain par an.