Year	current US$
1960	9100000
1961	3000000
1962	6800000
1963	17600000
1964	16600000.000000002
1965	-2300000
1966	14800000
1967	7100000
1968	-5100000
1969	31100000
1970	38433000
1971	3869000
1972	-34967000
1973	20326000
1974	39467000
1975	79433000
1976	101454000
1977	60240000
1978	98340000
1979	59500000
1980	81800000
1981	61200000
1982	99300000
1983	62426700
1984	33453600
1985	14552482.80541591
1986	17654748.75677135
1987	16803876.725141086
1988	15495028.752149073
1989	19271384.605678234
1990	20393764.801238667
1991	207054983.41711646
1992	322158504
1993	366002400
1994	443004839.5866457
1995	359662991.4529915
1996	157620633.56070775
1997	392599951.12067246
1998	604028004.685539
1999	877203467.380891
2000	692302782.6046331
2001	817308570.9499549
2002	598247227.7111341
2003	-137955747.36125296
2004	41963302.68446588
2005	772956751.5667635
2006	396500111.78666925
2007	577688973.2870358
2008	920194480.2859224
2009	198722835.22906485
2010	637201804.325606
2011	165492115.0815942
2012	130889717.75673844
2013	256990643.00393763
2014	223422005.94709402
2015	132634488.07615606
2016	20472505.865912545
2017	-1006675285.274706
2018	12588400.083191287
2019	-683988609.5405508
2020	-1547431609.9170604
2021	337979737.44553083
2022	111868854.39146915
2023	-1068530886.2914369