Year	constant 2010 US$
1976	1971481215.22079
1977	2086422062.34664
1978	2151205438.82205
1979	2158349403.28401
1980	2067092820.67641
1981	2034248666.89801
1982	2099335173.35997
1983	2143074912.84175
1984	2235698792.25593
1985	2323498217.42306
1986	2458371503.96651
1987	2876350275.68934
1988	3104576932.35037
1989	3307130643.09426
1990	3482230190.14747
1991	3663568093.94214
1992	3842957971.07147
1993	4055126168.46315
1994	4273810348.49309
1995	4470329843.64933
1996	4699439345.19699
1997	4845915123.14806
1998	5127437775.93779
1999	5350745205.50121
2000	5608392722.56789
2001	5785767119.19641
2002	6008381592.07701
2003	6266381296.57376
2004	6737319924.73431
2005	7186993021.59011
2006	7591592158.66274
2007	7832993564.39562
2008	8266744343.28303
2009	8481025581.26493
2010	8704116370.62928
2011	8923018489.71217
2012	9168032024.46699
2013	9396953224.89119
2014	9672787121.71188
2015	9953478645.43798
2016	10246111370.1924
2017	10549527429.6183
2018	10915624640.3983