Year	current US$
1995	230000000
1996	242000000
1997	272000000
1998	288000000
1999	304000000
2000	283000000
2001	266000000
2002	270000000
2003	298000000
2004	308000000
2005	352000000
2006	455000000
2007	623000000
2008	624000000
2009	640000000
2010	676000000
2011	831000000
2012	949000000
2013	1208000000
2014	1116000000
2015	1036000000
2016	1109000000
2017	978000000
2018	1034000000
2019	1102000000
2020	364000000