Year constant 2021 international $ 1990 43949.60091789664 1991 43245.04518723226 1992 44060.503363149925 1993 44686.195990055494 1994 45943.34123534172 1995 46625.65642923103 1996 47746.857807993445 1997 49276.99360090698 1998 50881.70044565331 1999 52741.655153698055 2000 54342.58513287584 2001 54360.13172303965 2002 54825.548111839504 2003 55826.72239752451 2004 57403.73928619654 2005 58843.18784927158 2006 59891.64952360809 2007 60515.04862200715 2008 60050.4096843903 2009 57959.141930637765 2010 59031.86429717024 2011 59585.69472999511 2012 60453.99197368723 2013 61296.579012847156 2014 62385.35341128919 2015 63624.81805216317 2016 64245.679340683266 2017 65404.27521351906 2018 66916.28010486902 2019 68153.10232081784 2020 65830.36460463335 2021 69482.651697582 2022 70570.60877798482 2023 71737.17992024816