YearPToutPBase 100
201093.6%100
201183.13%100.5
201288.78%101.1
201395.98%101.6
201489.02%102.2
201587.09%102.7
201690.77%103.3
2017100%103.8
201892.61%104.4
201991.91%104.9
202092.85%105.5
202194.58%106
Evolution : 6 % entre 2010 et 2021 soit 0.49 % de gain par an.