Year	current US$
1970	71189999.54871833
1971	89030000.31411645
1972	78930000.9682774
1973	105670001.16966666
1974	121029998.12364583
1975	189760002.20887363
1976	127549998.26662251
1977	177409999.01667237
1978	180779997.53504995
1979	249810000.28923148
1980	184669999.78385872
1981	194560001.01566312
1982	187559999.4044751
1983	208709999.51846907
1984	230319999.5830657
1985	279049997.7245926
1986	243070000.76770777
1987	270920001.51425606
1988	357309998.74323636
1989	240360000.28252605
1990	317410000.78618515
1991	376400002.85394496
1992	351420002.3710728
1993	312760000.2810361
1994	307990000.7173424
1995	253359996.89623725
1996	73379998.48462638
1997	119699999.76269893
1998	81519999.03470284
1999	108250000.5234033
2000	125670001.6260148
2001	89199999.31752694
2002	83800000.8463859
2003	71450000.75921415
2004	44619999.90791085
2005	64290000.56907534
2006	102589999.31253491
2007	35280000.137165174
2008	35960000.1871586
2009	22489999.903365962
2010	15609999.842941755
2011	31239999.756217007
2012	16870805.363520056
2013	34100112.351123214
2014	51665607.49104246
2015	36777857.96672106
2016	46233913.38810321
2017	29093709.872337066
2018	27563299.570654575
2019	59263139.38340171
2020	50732481.79350052
2021	36211970.142321646
2022	58512805.9387207