Year	current US$
1995	18036000000
1996	17616000000
1997	17702000000
1998	18365000000
1999	18230000000
2000	18611000000
2001	18036000000
2002	19297000000
2003	23144000000
2004	27634000000
2005	29111000000
2006	32903000000
2007	36094000000
2008	39921000000
2009	34752000000
2010	34557000000
2011	38928000000
2012	38054000000
2013	41283000000
2014	43277000000
2015	36895000000
2016	37476000000
2017	40011000000
2018	42895000000
2019	41779000000
2020	22049000000