Year	current US$
2001	22291000000
2002	35678100000
2003	159056600000
2004	472940800000
2005	1103534500000
2006	1403048100000
2007	681947600000
2008	523326600000
2009	335109900000
2010	201210910000
2011	291435880000
2012	511178270000
2013	362402350000
2014	567392070000
2015	436941100000
2016	306380423760.474
2017	218380624729.86902
2018	229577660000
2019	220782730000
2020	485419160000
2021	593308120000
2022	447513990000