Year constant 2021 US$ 1987 51907944 1988 62007654 1989 53293221 1990 92647584 1991 82619880 1992 108961003 1993 153238249 1994 178497991 1995 132318908.99999999 1996 181846593 1997 240953311 1998 334509625 1999 498664526 2000 314130914 2001 432383044 2002 428562618 2003 517537134.00000006 2004 558391711 2005 878368743 2006 495057440 2007 721742707 2008 966261907 2009 1088500112 2010 1382241338 2011 1475928671 2012 1787530806 2013 1890407497 2014 1906322660 2015 2047445243 2016 2415195993 2017 2255780934 2018 2404799394 2019 2668054421 2020 2423295266 2021 2997850000 2022 3212455768