Year	current US$
1995	235000000
1996	219000000
1997	227000000
1998	241000000
1999	271000000
2000	299000000
2001	340000000
2002	364000000
2003	354000000
2004	391000000
2005	429000000
2006	466000000
2007	504000000
2008	542000000
2009	549000000
2010	568000000
2011	594000000
2012	611000000
2013	623000000
2014	635000000
2015	639000000
2016	1081000000
2017	1064000000
2018	1134000000
2019	1216000000
2020	408000000