Year	current US$
1960	15866627.000099165
1961	18374954.062614843
1962	20766614.75012979
1963	23158275.43764474
1964	21583279.375134893
1965	25117647.05882353
1966	25000000
1967	27352941.17647059
1968	24500000
1969	26250000
1970	28500000
1971	30650000
1972	30428571.42857143
1973	30619047.61904762
1974	54681818.18181818
1975	67333333.33333334
1976	53960000
1977	49160000
1978	55000000
1979	58400000
1980	64800000
1981	71785714.28571428
1982	59666666.666666664
1983	52666666.666666664
1984	48157894.73684211
1985	52790697.674418606
1986	63023255.81395349
1987	42653061.22448979
1988	46000000
1989	44522062.5
1990	18050632.911392406
1991	13005366.72629696
1992	14068745.003996802
1993	15184331.797235025
1994	16601590.744757771
1995	20042253.521126762
1996	21923076.923076924
1997	23152927.29685887
1998	21199981.3976973
1999	20680007.640535288
2000	18823658.389519267
2001	19213025.81437912
2002	20732698.712401334
2003	19981603.617357284
2004	20730431.274661824
2005	25335834.896810506
2006	161581531.32730266
2007	183615576.92472395
2008	209066950.74327543
2009	207702868.35008582
2010	197190245.9819044
2011	222162314.5073339
2012	244423602.73118886
2013	264486576.19376308
2014	249567487.96181872
2015	254184019.37046006
2016	222644067.79661018
2017	227404358.3535109
2018	223506378.52281734
2019	261232613.9088729
2020	232201438.84892085
2021	252100719.42446044
2022	274796163.0695444