Year	current US$
1966	-187645109.50095838
1967	-270556117.6680314
1968	-186974933.33333334
1969	-319982800
1970	-483691866.6666667
1971	-386545655.3061417
1972	-94879915.96275884
1973	-581911562.9390858
1974	-1143884067.006842
1975	-388447495.7363127
1976	-2020047973.5318446
1977	-1775971981.6098082
1978	-1337915351.974758
1979	-1676045808.7816005
1980	-320246810.6247449
1981	870459331.2182385
1982	548925399.6447603
1983	1340001421.5418262
1984	991092153.7956471
1985	485594919.0291043
1986	-175304288.71585715
1987	2248163384.646872
1988	4016785708.9801683
1989	4265975486.306804
1990	7681178618.75061
1991	8657585867.271164
1992	10561573698.248869
1993	10779047024.167559
1994	9249914945.130962
1995	8712549978.580608
1996	10626560263.507338
1997	7561485956.544781
1998	5440736180.754537
1999	10677333648.691263
2000	11016003637.218393
2001	11766787980.006735
2002	12240052060.242954
2003	14819866114.121773
2004	14200323980.57118
2005	14557631442.91217
2006	11579493172.798817
2007	9254395907.195475
2008	12450198897.628529
2009	14446567180.883806
2010	22365400532.532017
2011	21997288777.421787
2012	19694424304.519726
2013	22702327991.13197
2014	24576696342.665718
2015	20545812459.38069
2016	20925951683.78632
2017	23830894110.203094
2018	21926510162.791363
2019	24495852419.383972
2020	23001830483.8825
2021	27155455414.858128
2022	44399010098.26582
2023	38667795551.55166