YearPToutPBase 100
201192.77%100
201294.13%100.7
201389.84%101.4
201494.21%102.1
201597.97%102.8
201690.66%103.5
201797.27%104.3
201898%105
201997.06%105.7
2020100%106.4
202196.73%107.1
Evolution : 7 % entre 2011 et 2021 soit 0.63 % de gain par an.