Year	current US$
2001	23247802287.270252
2002	24758811082.368958
2003	27517552893.124577
2004	29533120000
2005	36424851681.41593
2006	42802745377.80804
2007	64992757985.02383
2008	79178107855.68414
2009	80206027365.5548
2010	78593555316.54187
2011	81219427147.71954
2012	81978431095.98366
2013	75126823335.60245
2014	89369188618.10756
2015	91822890156.56909
2016	92902151858.40709
2017	97541306140.23146
2018	99269102573.17903
2019	93724842260.04085
2020	79632485146.35806