Year	current US$
1995	430000000
1996	504000000
1997	478000000
1998	496000000
1999	543000000
2000	542000000
2001	623000000
2002	612000000
2003	697000000
2004	856000000
2005	871000000
2006	1005000000
2007	1304000000
2008	1454000000
2009	1120000000
2010	1285000000
2011	1484000000
2012	1480000000
2013	1322000000
2014	1447000000
2015	1433000000
2016	1571000000
2017	1748000000
2018	1891000000
2019	1779000000
2020	466000000
