Year	current US$
1965	24336659426.419907
1966	25417345852.440807
1967	27679916347.14038
1968	31105822667.417583
1969	35061889406.53376
1970	41048248320.26503
1971	46075429891.26657
1972	55562863785.80874
1973	71037550288.26799
1974	97021424785.64905
1975	132030757862.16405
1976	157847581549.64563
1977	190169493705.4135
1978	202535630165.19745
1979	218585669096.7445
1980	281682079836.8863
1981	290284679001.1778
1982	318069422854.7741
1983	356389948554.8134
1984	374715387036.17804
1985	396064139615.76654
1986	453398761299.73566
1987	367932402060.61346
1988	361164245966.9395
1989	361326017393.07855
1990	502896468324.2953
1991	235103989933.14606
1992	257523065107.04324
1993	269941590788.96237
1994	278499305278.4781
1995	328354419927.18317
1996	372367367327.28723
1997	380025322174.70337
1998	404198545068.28845
1999	416190053153.7568
2000	416313026879.52924
2001	439480501717.1871
2002	419801578408.96844
2003	464128536745.4439
2004	546265635546.67035
2005	603095317985.6841
2006	699557415273.4949
2007	865537706347.8881
2008	1079649973952.2117
2009	1150044336750.5322
2010	1279834171854.3933
2011	1486440919366.6177
2012	1657629114570.2773
2013	1566427555358.431
2014	1604922674893.162
2015	1511167145132.407
2016	1542727727725.3418
2017	1514947190674.017
2018	1399831045938.3367
2019	1440532666774.1519
2020	1386909995829.5007
2021	1533922670466.3918
2022	1662176879709.1265
2023	1561767732265.722