Year	current US$
1995	19000000
1996	25000000
1997	13000000
1998	22000000
1999	35000000
2000	290000000
2001	269000000
2002	386000000
2003	507000000
2004	669000000
2005	808000000
2006	989000000
2007	1331000000
2008	1644000000
2009	1692000000
2010	1452000000
2011	1677000000
2012	1374000000
2013	1567000000
2014	1689000000
2015	1311000000
2016	1338000000
2017	1473000000
2018	1750000000
2019	1852000000
2020	805000000