Year	current US$
1995	520000000
1996	449000000
1997	336000000
1998	286000000
1999	396000000
2000	446000000
2001	410000000
2002	585000000
2003	617000000
2004	829000000
2005	1117000000
2006	1577000000
2007	1745000000
2008	1695000000
2009	1315000000
2010	1528000000
2011	1817000000
2012	1847000000
2013	1757000000
2014	1753000000
2015	1821000000
2016	2195000000
2017	2172000000
2018	2323000000
2019	2614000000
2020	816000000