Year	current US$
1995	53000000
1996	64000000
1997	71000000
1998	73000000
1999	85000000
2000	82000000
2001	89000000
2002	91000000
2003	91000000
2004	96000000
2005	104000000
2006	113000000
2007	110000000
2008	96000000
2009	88000000
2010	86000000
2011	92000000
2012	94000000
2013	92000000
2014	175000000
2015	207000000
2016	216000000
2017	210000000
2018	226000000
2019	249000000
2020	83000000