Year	constant 2021 US$
1960	2395239972.17417
1961	2827080011.3678
1962	3545829959.57136
1963	3324339990.13901
1964	4276160024.6429396
1965	4710659933.09021
1966	4926680025.10071
1967	4351480042.45758
1968	4144629964.3069496
1969	3749160020.56003
1970	3793310042.61971
1971	4243689954.5788803
1972	4803900009.036059
1973	6721619899.31017
1974	10471909984.111801
1975	11462840095.52
1976	10794850065.3505
1977	12002299913.8832
1978	12217430094.957401
1979	15787310226.5596
1980	15902920051.5747
1981	15822209821.701
1982	15581569830.894499
1983	14511300032.6157
1984	14830270056.2477
1985	17245109938.2006
1986	15877000167.846699
1987	15621550051.927599
1988	14831839887.619
1989	14648400011.062601
1990	16629580101.966902
1991	15977200037.9562
1992	15142890151.5007
1993	14721959922.7905
1994	14751369932.6515
1995	13491900140.7623
1996	10664000095.367401
1997	11294750041.9617
1998	10704000003.814701
1999	10458729980.4688
2000	10993850074.768099
2001	13562859966.2781
2002	18202010025.0244
2003	22601850250.244102
2004	20552479957.5806
2005	21867569740.2954
2006	23581939823.150597
2007	25500819625.8545
2008	27658719947.814903
2009	30137200111.3892
2010	31326619773.8647
2011	32430500366.2109
2012	31399800437.9272
2013	33080769966.125504
2014	33158590065.0024
2015	36673060050.9644
2016	40939200279.2358
2017	45201579612.731895
2018	49676860260.0098
2019	47903999771.1182
2020	54715689773.5596
2021	48961330570.2209