Year	current US$
1997	411482016466.8496
1998	403118301314.45905
1999	424488793161.4727
2000	456551074001.7507
2001	462170067148.7603
2002	479329000191.1681
2003	563506530583.1133
2004	640699461952.3444
2005	727719920779.0065
2006	827485014104.3723
2007	926773112373.1495
2008	974259606373.0084
2009	919198670282.565
2010	1063135094444.6964
2011	1162043486792.7744
2012	1191422859004.5408
2013	1203380290480.0957
2014	1171967739994.9912
2015	1042876437217.5817
2016	1038407705074.7067
2017	1106932213882.6108
2018	1153655963674.696
2019	1179999119728.0793
2020	1151690655351.565