Year	constant 2010 US$
1976	1535932624.00755
1977	1628829669.69276
1978	1675278190.38447
1979	1690934996.22372
1980	1596472268.66404
1981	1547414281.04942
1982	1602734991.8601
1983	1634013522.48405
1984	1707575985.88388
1985	1794653869.699
1986	1920154137.5999
1987	2298392647.2469
1988	2496001216.14068
1989	2675773385.31924
1990	2809546406.84322
1991	2951400460.04815
1992	3093423169.02545
1993	3258743952.67291
1994	3449202959.6365
1995	3614194803.0123
1996	3792330947.53239
1997	3985558230.40602
1998	4231101259.6823
1999	4403027429.49077
2000	4574568149.83708
2001	4710168855.16175
2002	4865928347.29046
2003	5094526269.8629
2004	5518961658.0719
2005	5917533186.82216
2006	6268625041.67358
2007	6548324856.31908
2008	6987633963.4506
2009	7133694351.24577
2010	7321760372.13654
2011	7505141619.91256
2012	7710844779.30381
2013	7914280559.96449
2014	8122426671.20215
2015	8355658585.36426
2016	8602713528.56905
2017	8880586059.44573
2018	9176233038.25164