Year	current US$
1966	6099999.90463257
1967	9699999.80926514
1968	7849999.90463257
1969	6360000.1335144
1970	7889999.8664856
1971	8819999.69482422
1972	10210000.038146999
1973	17620000.8392334
1974	27340000.1525879
1975	21559999.4659424
1976	25260000.2288818
1977	12090000.1525879
1978	13439999.5803833
1979	19579999.9237061
1980	43250000
1981	46369998.9318848
1982	38069999.6948242
1983	37630001.0681152
1984	42680000.3051758
1985	47130001.0681152
1986	45930000.3051758
1987	54069999.6948242
1988	51220001.220703095
1989	44069999.6948242
1990	44880001.0681152
1991	63299999.237060495
1992	47869998.9318848
1993	48619998.9318848
1994	38700000.762939505
1995	41599998.4741211
1996	39200000.762939505
1997	30200000.762939498
1998	40619998.9318848
1999	22090000.1525879
2000	19309999.4659424
2001	27670000.0762939
2002	27579999.9237061
2003	24610000.6103516
2004	25879999.1607666
2005	23139999.3896484
2006	32000000
2007	42549999.237060495
2008	41979999.5422363
2009	51159999.8474121
2010	69910003.6621094
2011	55349998.4741211
2012	101610000.61035201
2013	81230003.3569336
2014	74949996.9482422
2015	65830001.8310547
2016	53740001.6784668
2017	67220001.2207031
2018	90930000.3051758
2019	73529998.7792969
2020	132179992.675781
2021	153639999.38964802
2022	137279998.779297