Year	current US$
1995	77000000
1996	316000000
1997	360000000
1998	460000000
1999	550000000
2000	391000000
2001	383000000
2002	505000000
2003	638000000
2004	776000000
2005	920000000
2006	1038000000
2007	1154000000
2008	1248000000
2009	972000000
2010	958000000
2011	1321000000
2012	1317000000
2013	1374000000
2014	1383000000
2015	1153000000
2016	1210000000
2017	1325000000
2018	1504000000
2019	1492000000
2020	470000000