Year	current US$
1995	656000000
1996	632000000
1997	635000000
1998	653000000
1999	667000000
2000	587000000
2001	561000000
2002	614000000
2003	722000000
2004	767000000
2005	755000000
2006	767000000
2007	965000000
2008	1082000000
2009	899000000
2010	1066000000
2011	1276000000
2012	1260000000
2013	1402000000
2014	1521000000
2015	1381000000
2016	1451000000
2017	1747000000
2018	1849000000
2019	1897000000
2020	418000000