Year	current US$
1995	93000000
1996	103000000
1997	95000000
1998	102000000
1999	21000000
2000	24000000
2001	30000000
2002	49000000
2003	60000000
2004	90000000
2005	130000000
2006	205000000
2007	284000000
2008	405000000
2009	426000000
2010	467000000
2011	552000000
2012	631000000
2013	916000000
2014	830000000
2015	831000000
2016	802000000
2017	863000000
2018	948000000
2019	965000000
2020	226000000