Year constant 2021 PPP $ 1991 24870.152337143852 1992 24735.075695383253 1993 24640.46776271465 1994 25008.114184326747 1995 24975.359971371847 1996 24844.480939865436 1997 25028.018531734106 1998 24444.374678464705 1999 23343.24694035167 2000 23641.179156954167 2001 23693.42047655985 2002 24185.483568317417 2003 24272.054371947015 2004 24338.86144848137 2005 24908.489519331062 2006 24953.5343261383 2007 25163.78118873301 2008 26495.85672870385 2009 27412.30929948549 2010 28318.687301167985 2011 30287.55178923459 2012 30940.963255057315 2013 32519.688447192493 2014 33124.19431635349 2015 30998.067665695173 2016 29523.939766566407 2017 30133.41815996335 2018 30217.026515398637 2019 29774.74303624477 2020 29893.28805920685 2021 28990.727586998193 2022 29971.995018247875 2023 30337.748475895278