Year constant 2021 PPP $ 1991 32047.688676833743 1992 35045.51249781468 1993 36210.02985912429 1994 35777.90742554479 1995 34818.0762757816 1996 33802.26203109371 1997 32744.631893818416 1998 33248.18896164972 1999 33894.80464389639 2000 35535.72927359177 2001 35062.31583562903 2002 35836.9200994971 2003 37867.52449304491 2004 38216.44578246933 2005 37665.625838894775 2006 37190.05960306408 2007 36558.74350189132 2008 34470.8985817665 2009 33039.48683772084 2010 32186.462752929354 2011 30875.707588256588 2012 30803.97550767863 2013 30988.172957456714 2014 30735.250636276618 2015 30343.788711330195 2016 29082.685008783417 2017 27722.538972445083 2018 27748.45971430537 2019 28657.856502188555 2020 25428.954615742852 2021 29003.29649209477 2022 29749.240531741678 2023 30133.33643364769