Year	current US$
1960	547533527.7622931
1961	433330937.1938014
1962	340541356.51984835
1963	260900091.51578748
1964	631119152.1548212
1965	802422844.7039866
1966	541710644.2602693
1967	342231796.25776285
1968	399708873.6861489
1969	725787063.6387588
1970	1391657967.9888659
1971	778360873.212509
1972	408275659.3314295
1973	224941954.98362833
1974	1866616659.9089966
1975	3099133712.2489285
1976	2519874882.343488
1977	109494153.87361656
1978	-915034635.3878499
1979	999782836.8827413
1980	2069480329.1091359
1981	-157555397.55895248
1982	-367639353.13405275
1983	-757756387.6824354
1984	-305543170.7729877
1985	654470879.4848849
1986	141589224.54938516
1987	419919563.43448365
1988	660201560.255908
1989	1100583846.4998682
1990	898840643.3736569
1991	-2183935014.4687886
1992	83091280.6071637
1993	-617596423.156975
1994	2233540694.6604457
1995	3023705718.25102
1996	1095287801.9683864
1997	1262491977.6290455
1998	1960779380.8727152
1999	682731409.7598761
2000	1708978193.0104122
2001	681763173.9454551
2002	231691160.6125027
2003	1003672878.8197322
2004	-110220577.22924519
2005	-519998394.2406766
2006	112222493.2910466
2007	3512605788.009706
2008	229551971.59806406
2009	-6361023282.552457
2010	2338389662.0071445
2011	5398131374.601337
2012	-730920801.0460987
2013	455636000.8729951
2014	1604189608.0404794
2015	3410734187.9302416
2016	2603366233.907803
2017	3182412315.559004
2018	4603384021.239723
2019	3812081724.268482
2020	-102168124.55437651
2021	1746269864.831908
2022	7969645778.803911
2023	549284769.2987528