Year	constant 2010 US$
1976	2804983019.8755
1977	2937108250.5009
1978	3069879622.20073
1979	3119735698.07496
1980	2639867693.28855
1981	2722752546.4483
1982	2620933253.08728
1983	2657352414.12929
1984	2922641583.85108
1985	3102933061.93596
1986	3283742537.36908
1987	3994553025.42686
1988	4544802812.27434
1989	4771381492.63848
1990	4977210952.73798
1991	5138442089.11458
1992	5473112072.47814
1993	5827014649.47805
1994	6185733899.04678
1995	6135270299.80811
1996	6440445217.31904
1997	7060522005.16498
1998	7232899019.72882
1999	7608492000.02592
2000	7844305609.96953
2001	7613934930.04827
2002	8175062502.00345
2003	8569873753.51557
2004	9261417072.7571
2005	9303083662.62386
2006	10190378936.1984
2007	10759997429.5608
2008	11221828877.6213
2009	11255380201.055
2010	11415619599.5374
2011	12391354792.4836
2012	12869411890.636
2013	12883853644.2162
2014	12893452295.4109
2015	13000140106.9401
2016	13390537740.3901
2017	13903428666.587
2018	14508791135.8614