Year	current US$
1972	26420000.0762939
1973	54909999.8474121
1974	48549999.237060495
1975	64360000.61035161
1976	46959999.0844727
1977	42139999.3896484
1978	77569999.6948242
1979	59209999.0844727
1980	57119998.9318848
1981	58020000.4577637
1982	88160003.6621094
1983	87470001.2207031
1984	84459999.0844727
1985	78410003.6621094
1986	71099998.4741211
1987	101949996.94824201
1988	116980003.35693401
1989	73209999.0844727
1990	102300003.05175799
1991	94580001.8310547
1992	108870002.746582
1993	41250000
1994	53709999.0844727
1995	52240001.6784668
1996	37509998.3215332
1997	73440002.44140631
1998	53490001.6784668
1999	29030000.6866455
2000	38459999.0844727
2001	30290000.915527303
2002	30870000.8392334
2003	38419998.1689453
2004	48919998.1689453
2005	50750000
2006	56740001.6784668
2007	60240001.6784668
2008	82059997.55859381
2009	52450000.762939505
2010	86110000.6103516
2011	61209999.0844727
2012	35349998.4741211
2013	81760002.1362305
2014	71809997.55859381
2015	49150001.5258789
2016	45909999.8474121
2017	39020000.4577637
2018	89279998.7792969
2019	81529998.7792969
2020	68650001.5258789
2021	86010002.1362305
2022	91120002.746582