Year	current US$
1995	26000000
1996	28000000
1997	27000000
1998	33000000
1999	33000000
2000	34000000
2001	41000000
2002	53000000
2003	61000000
2004	103000000
2005	111000000
2006	126000000
2007	140000000
2008	134000000
2009	147000000
2010	222000000
2011	227000000
2012	214000000
2013	227000000
2014	247000000
2015	266000000
2016	278000000
2017	291000000
2018	298000000
2019	314000000
2020	90000000