Year constant 2021 PPP $ 1991 22946.553769673304 1992 23315.908138662508 1993 23508.981401710258 1994 23755.094635460526 1995 24218.87126673652 1996 24269.370015294066 1997 24611.77752115087 1998 25088.415369003033 1999 25296.93178218176 2000 25471.05357910075 2001 25385.572399886776 2002 25608.801815916162 2003 25546.09914390574 2004 25626.602446486482 2005 25913.828849466205 2006 26680.34809068234 2007 27727.82188778545 2008 28048.59908556378 2009 27687.66565990039 2010 27982.165445636383 2011 27813.272583349033 2012 26164.96206187223 2013 28633.355103552196 2014 28793.0610101654 2015 29216.90004654713 2016 29234.574115207346 2017 29245.000841779758 2018 29683.746233377813 2019 30806.718501499658 2020 30565.66751160737 2021 31301.005345107264 2022 31468.536538863686 2023 31752.188024143645