Year	current US$
1995	8035000000
1996	9089000000
1997	7660000000
1998	6174000000
1999	7028000000
2000	7483000000
2001	7075000000
2002	7901000000
2003	7856000000
2004	10043000000
2005	9576000000
2006	13401000000
2007	16669000000
2008	18173000000
2009	16056000000
2010	20104000000
2011	27184000000
2012	30654000000
2013	37807000000
2014	34822000000
2015	41246000000
2016	44786000000
2017	52376000000
2018	56366000000
2019	59810000000
2020	14198000000