Year	constant 2015 US$
1976	477371441.4799464
1977	501390132.63999563
1978	521655899.84118557
1979	511898309.12056476
1980	516401809.15763384
1981	535166409.6341315
1982	545674586.1147006
1983	559450857.1984061
1984	580283258.4773419
1985	580283258.4773419
1986	589691441.9658355
1987	631020245.3525422
1988	663739814.0617336
1989	687778680.9980359
1990	733185428.5188574
1991	776436170.0985403
1992	817295570.5377535
1993	868640336.7570072
1994	898725169.9784988
1995	932776786.9304744
1996	988659910.4788144
1997	934069116.0563351
1998	972393501.3368043
1999	1028795255.4759887
2000	1119636616.6255085
2001	1164310527.7745008
2002	1235101501.018125
2003	1268078248.072149
2004	1320959996.0054095
2005	1378289508.2948015
2006	1437554941.3706791
2007	1396166564.5921733
2008	1390356231.9084697
2009	1464398678.2147067
2010	1502467982.660712
2011	1541072896.7903302
2012	1583797687.4937153
2013	1611531243.78021
2014	1675168455.5182843
2015	1703811254.3393989
2016	1778621505.739099
2017	1795326143.5639417
2018	1877317723.6479003
2019	1913825856.4577236
2020	1905122488.4860735
2021	1863446944.3579817
2022	1982522817.2162983
2023	1908543123.430115