Year	current US$
1960	1868066406.2271092
1961	908789062.4888638
1962	1720587479.4197056
1963	1242277446.53083
1964	1909254214.6147623
1965	1372484066.5950239
1966	2004916221.1925373
1967	1688700143.8937807
1968	1612967722.0197086
1969	3424889399.471362
1970	3736860753.5136414
1971	2488457440.511424
1972	3347204161.2483745
1973	5207719505.00884
1974	6468903436.9885435
1975	-1935138442.7107236
1976	5447965036.875171
1977	6083177320.139074
1978	3322674418.6046515
1979	7801418439.716312
1980	9257994411.673393
1981	-2461074230.537115
1982	3232857570.61583
1983	-1066356829.3312678
1984	-345267582.37634164
1985	-68623156.66520661
1986	4094137702.4339423
1987	3807704900.141875
1988	7370333663.693426
1989	11312975529.508533
1990	13034574147.69305
1991	5378444366.934077
1992	-1693928128.8723667
1993	-15383368079.684967
1994	-1481568998.1096408
1995	7029833092.39059
1996	-3819720476.9842286
1997	-978871656.5520341
1998	11715588169.891039
1999	8281083000.000018
2000	13297249868.235323
2001	8975103495.669302
2002	5438940069.019617
2003	2790572687.4509745
2004	11129194026.640955
2005	14394124451.36186
2006	18262684888.235268
2007	26130904773.725574
2008	15642955165.624996
2009	-19833806039.062485
2010	-4209150416.6666746
2011	22836417879.377476
2012	4522456125.000001
2013	6898245095.686294
2014	25420862507.84305
2015	29588489767.187485
2016	19637568124.90277
2017	24403372774.11769
2018	26922219959.99998
2019	24211994698.039177
2020	21481282221.011734
2021	12732199437.984291
2022	35508800077.82115
2023	12502709139.215906