Year	current US$
1970	19900000.11771917
1971	22990000.38765371
1972	21809999.849647276
1973	21700000.200420614
1974	39540000.43496486
1975	45429999.32914974
1976	29120000.35494567
1977	37309999.68014662
1978	62430000.75034793
1979	81080000.21800402
1980	82150000.17359859
1981	77940000.26024881
1982	92280001.59934163
1983	108119998.87041749
1984	96119999.41244726
1985	91789998.63006175
1986	121869999.54283234
1987	126039998.89269474
1988	132330000.62778604
1989	179930001.98900697
1990	189500001.81421643
1991	192429999.4446338
1992	234549999.22588453
1993	271959998.43627214
1994	267360000.8171052
1995	283790000.7367134
1996	287430002.8514116
1997	148760001.26451257
1998	146019998.41816723
1999	119070000.33557408
2000	114709999.35269353
2001	109939999.57293278
2002	101119999.4981288
2003	107730000.3170968
2004	106689999.61018562
2005	126069998.69644645
2006	129460001.85608871
2007	139499999.58276743
2008	128560000.18119812
2009	126939998.80552292
2010	125629999.72701073
2011	126920000.91075893
2012	115750310.9942191
2013	123042319.5660114
2014	148197053.61127853
2015	156728828.43017572
2016	151937927.42490765
2017	157547472.36520058
2018	153731588.54246137
2019	173109001.4576912
2020	144406002.16388705
2021	138931999.3853569
2022	143550999.99904633