Year	current US$
1960	141000000
1961	185000000
1962	60000000
1963	69000000
1964	154000000
1965	421000000
1966	380120000
1967	154460000
1968	212330000
1969	611330000
1970	1141660000
1971	1696186417.94277
1972	4132748276.74583
1973	6359911334.0128
1974	5215752779.69263
1975	3980374681.37877
1976	6488040931.77382
1977	7192021622.37625
1978	11826399177.1807
1979	8966257354.82902
1980	5769329542.0342
1981	6603517844.25765
1982	3927907217.94856
1983	4355083756.47813
1984	11507921396.9956
1985	10604582161.6872
1986	7233512231.96702
1987	6956784425.9388
1988	7996130622.65344
1989	8484900000
1990	8238526007.59699
1991	8675945140.11071
1992	23007500004.125
1993	31104569118.5912
1994	37388536998.0861
1995	50073008380.8018
1996	58789943587.583
1997	51329504787.1422
1998	43164752772.0479
1999	35279324443.4703
2000	32433984750.6899
2001	35563040398.0627
2002	37461990439.998
2003	48846596457.0736
2004	52461784859.9627
2005	53245209760.7774
2006	85156183463.7376
2007	179432865855.624
2008	192843633608.446
2009	237364464789.493
2010	287056037253.54
2011	350356038764.795
2012	369565972392.636
2013	356214148612.928
2014	360964711541.741
2015	354174892918.288
2016	362504953620.439
2017	371150619206.193
2018	371933901818.424
2019	353587904337.499
2020	351518545352.004
2021	354623061924.661
2022	317118738103.422
2023	346424359999.494