Year	current US$
1990	481343444.88884574
1991	575826925.1753241
1992	641261506.5437442
1993	667722601.9512261
1994	756622280.5035652
1995	776234191.8370497
1996	820387914.9052355
1997	769450577.9585003
1998	657266706.0042844
1999	726926044.8178803
2000	631045362.7707864
2001	531415747.51624537
2002	570138147.401452
2003	680951246.9173018
2004	778613197.107463
2005	830731542.021094
2006	871596372.538394
2007	954227693.9345784
2008	982754138.7355919
2009	895595178.6819422
2010	983787212.2874553
2011	1153904030.0055285
2012	1268719880.4865117
2013	1342581370.2907727
2014	1341174435.4992404
2015	1269047921.4397306
2016	1489719775.28375
2017	1606663514.0625992
2018	1710664217.7633514
2019	1729057468.5275862
2020	1724597305.923964
2021	1775623309.007133
2022	1733321190.2056777