Year	current US$
1960	4266666666.6666665
1961	4500000000
1962	4944444444.444445
1963	5688888888.888888
1964	5988888888.888888
1965	6277777777.777778
1966	7344444444.444445
1967	8022222222.222222
1968	8944444444.444445
1969	9966666666.666666
1970	9281818181.818182
1971	9086666666.666666
1972	11671428571.428572
1973	15035714285.714287
1974	21614285714.285713
1975	27142857142.857143
1976	28850000000
1977	33533333333.333332
1978	38187500000
1979	49712903225.80645
1980	42088157894.73684
1981	42162162162.16216
1982	38250920245.39877
1983	38489333333.333336
1984	37804904632.15259
1985	39130651340.99617
1986	40834518518.51852
1987	59531505250.875145
1988	57700562587.90436
1989	70282893496.70122
1990	103320237638.94211
1991	106632502396.93192
1992	110630951688.00932
1993	124655357305.41647
1994	91399996622.64851
1995	119051209510.30647
1996	122077234813.58638
1997	129187738451.91454
1998	178172641950.87524
1999	169312660494.81473
2000	183627023331.0248
2001	130809132269.57184
2002	153348340925.64752
2003	205474006336.2616
2004	262816312379.12448
2005	321004709645.7755
2006	343810577246.85376
2007	422968085186.3989
2008	470593148559.91675
2009	399783442863.0416
2010	486996296500.846
2011	526028151801.0932
2012	545152756206.70593
2013	587163754196.94
2014	566813928999.3064
2015	518775101626.50195
2016	516664262226.6886
2017	503443281919.8204
2018	437639755114.0448
2019	432980696687.716
2020	408922139769.61176
2021	452935938117.2032
2022	519856621646.4457
2023	658190973834.6841