Year	constant 2010 US$
1975	2586807707.72836
1976	3010523057.1651
1977	3418308520.57821
1978	3696405035.68621
1979	3902655674.06593
1980	4148551021.51107
1981	4272949196.9914
1982	4687885208.75779
1983	5017492937.83365
1984	5236008328.26641
1985	5521612826.06348
1986	5639683869.6292
1987	6226360492.41846
1988	6848696202.30434
1989	7255942363.75085
1990	8052183195.87183
1991	8705049006.62251
1992	9211213245.03311
1993	8545432317.88079
1994	9079068476.82119
1995	10871245033.1126
1996	11353774834.4371
1997	11842304635.7616
1998	12897099337.7483
1999	13416278145.6954
2000	14135642384.106
2001	14984105960.2649
2002	15509735099.3377
2003	16306317880.7947
2004	17142039735.0993
2005	17753880794.702
2006	18572172185.4305
2007	20124635761.5894
2008	21699867549.6689
2009	20853019867.5497
2010	21327655629.1391
2011	21320821192.053
2012	21002675496.6887
2013	19846874172.1854
2014	19673456953.6424
2015	20029562913.9073
2016	20709509933.7748
2017	21513019867.5497
2018	22338807947.0199