YearPToutPBase 100
201093.57%100
201197.89%100.4
201299.32%100.8
201396.8%101.2
201497.58%101.6
201596.74%102
201696.84%102.4
201798.26%102.8
201899.23%103.2
201999.81%103.6
2020100%104
Evolution : 4 % entre 2010 et 2020 soit 0.36 % de gain par an.