Year	current USD
1970	521424799.768957
1973	810016703.5855997
1974	1101915279.6809921
1975	1544975804.223296
1976	1644516396.0015035
1977	1903645338.728802
1978	2319115020.5253434
1979	2954387063.556513
1980	3918362938.8582363
1981	3749668853.050469
1982	3960416665.3021474
1983	4022131144.7620945
1984	4818008748.627154
1985	4774771553.196354
1986	5147764884.629814
1987	5052102974.448847
1988	5562493540.990048
1989	2925409175.665519
1990	5083775576.644236
1991	6401796510.790094
1992	5327446775.230312
1993	4541423084.57347
1994	4954678620.054982
1995	2637035322.6660304
1996	2406672124.939794
1997	2471676931.4446692
1998	3039064792.724318
1999	3636042432.8020515
2000	3456265873.131345
2001	3012973852.377991
2002	3322083866.2471037
2003	3831886245.8070636
2004	4676255562.52647
2005	4868985767.637876
2006	6025366555.806237
2007	7650628549.793435
2008	9555957350.478394
2009	9898678443.045668
2010	7232614963.018096
2011	8141082779.305112
2012	4920914940.216363
2013	5681351125.389971
2014	6850828002.259012
2015	7050864154.661331
2016	6778173473.886114
2017	8507514063.334722
2018	6290061214.661475
2019	4935653597.376956
2020	5801694834.251308
2021	5558590115.163376
2022	5692947158.9298115