YearPToutPBase 100
201190.61%100
2012100%100.5
201397.84%101
201480.72%101.5
201599.27%101.9
201697.65%102.4
201794.18%102.9
201897.85%103.4
201993.01%103.9
202098.5%104.4
202198.83%104.9
Evolution : 4 % entre 2011 et 2021 soit 0.44 % de gain par an.