Year	current US$
1971	5989999.771118159
1972	7750000
1973	35110000.6103516
1974	40209999.0844727
1975	60709999.0844727
1976	15180000.3051758
1977	44159999.8474121
1978	29790000.915527303
1979	22280000.6866455
1980	33209999.084472697
1981	53750000
1982	67500000
1983	40750000
1984	49430000.3051758
1985	6820000.17166138
1986	20110000.6103516
1987	39740001.6784668
1988	54069999.6948242
1989	105440002.441406
1990	58700000.762939505
1991	58849998.4741211
1992	51340000.1525879
1993	70410003.6621094
1994	56270000.4577637
1995	111680000.30517599
1996	112870002.746582
1997	81110000.6103516
1998	87309997.55859381
1999	64110000.61035161
2000	68389999.3896484
2001	73930000.3051758
2002	24739999.7711182
2003	52330001.8310547
2004	58189998.626709
2005	78309997.55859381
2006	100879997.253418
2007	101449996.94824201
2008	194479995.727539
2009	131869995.117188
2010	188649993.89648402
2011	159119995.117188
2012	128210006.713867
2013	119970001.22070299
2014	98230003.3569336
2015	79449996.9482422
2016	115110000.61035201
2017	141440002.44140598
2018	168619995.117188
2019	160710006.71386698
2020	279470001.220703
2021	234529998.779297
2022	153000000