Year	current US$
1995	10370000000
1996	11882000000
1997	11735000000
1998	10169000000
1999	11408000000
2000	11594000000
2001	11333000000
2002	12148000000
2003	14981000000
2004	18032000000
2005	19719000000
2006	20408000000
2007	25024000000
2008	27189000000
2009	26909000000
2010	31064000000
2011	34315000000
2012	34137000000
2013	32889000000
2014	35736000000
2015	36249000000
2016	39059000000
2017	43975000000
2018	47327000000
2019	47953000000
2020	26234000000