Year	current US$
1997	343000000
1998	404000000
1999	467000000
2000	381000000
2001	626000000
2002	639000000
2003	654000000
2004	762000000
2005	835000000
2006	986000000
2007	1215000000
2008	1293000000
2009	1192000000
2010	1279000000
2011	1383000000
2012	1754000000
2013	1939000000
2014	2047000000
2015	1924000000
2016	2149000000
2017	2265000000
2018	2465000000
2019	2624500000