Year	current US$
1995	331000000
1996	313000000
1997	331000000
1998	325000000
1999	385000000
2000	416000000
2001	465000000
2002	507000000
2003	500000000
2004	577000000
2005	644000000
2006	706000000
2007	733000000
2008	790000000
2009	806000000
2010	863000000
2011	917000000
2012	944000000
2013	989000000
2014	990000000
2015	994000000
2016	1454000000
2017	1463000000
2018	1523000000
2019	1650000000
2020	533000000