Year	constant 2010 US$
1981	15731234937.7304
1982	16141005776.9608
1983	16028702449.6227
1984	15326254612.0942
1985	18170983424.1769
1986	19872755338.4662
1987	19239592896.9938
1988	21121822084.7934
1989	22129017626.0868
1990	23052311174.3114
1991	23891451888.2487
1992	24450044791.0152
1993	24908287617.9324
1994	25547082794.1822
1995	26463305803.8031
1996	27502350079.176
1997	28647617628.9771
1998	29775787971.8958
1999	31295450915.5145
2000	32209152457.7839
2001	33430532058.3108
2002	52010568970.3123
2003	55654979459.4738
2004	59139665196.4763
2005	63320812917.6702
2006	68014710651.5056
2007	72911609813.8365
2008	77481875869.273
2009	82039185800.8756
2010	86820135996.487
2011	89351679783.4968
2012	95341958123.1953
2013	98141846274.0689
2014	102332628081.545
2015	106137274886.559
2016	110496063384.077
2017	114302886842.14
2018	116729083157.542