Year	current US$
1995	236000000
1996	192000000
1997	264000000
1998	265000000
1999	280000000
2000	281000000
2001	257000000
2002	178000000
2003	169000000
2004	194000000
2005	252000000
2006	213000000
2007	239000000
2008	358000000
2009	336000000
2010	419000000
2011	644000000
2012	878000000
2013	1294000000
2014	1311000000
2015	1158000000
2016	855000000
2017	996000000
2018	1033000000
2019	1210000000
2020	341000000