Year	current US$
1999	2595000000
2000	2871000000
2001	3463000000
2002	3952000000
2003	6513000000
2004	6945000000
2005	7625000000
2006	8296000000
2007	9617000000
2008	11615000000
2009	9300000000
2010	8299000000
2011	9598000000
2012	8912000000
2013	9715000000
2014	10079000000
2015	8207000000
2016	9215000000
2017	10534000000
2018	11348000000
2019	11974000000
2020	5631853027.34375