Year	current US$
1970	284759994.509
1971	315897541.17459995
1972	348440035.399
1973	376562895.062
1974	1856995939.5399003
1975	3218261027.4836383
1976	4234913193.4848003
1977	6771398820.065193
1978	8996008154.601377
1979	11594259604.246069
1980	16303252898.38575
1981	16815319612.049166
1982	19018230262.80735
1983	20486694781.230717
1984	19835683279.249634
1985	18883489743.788162
1986	19321745009.032555
1987	22366087841.195198
1988	22098065781.536514
1989	23782193797.365364
1990	26885876212.590496
1991	30470955482.214123
1992	35674655529.85727
1993	37772320620.812195
1994	46687828050.06497
1995	47195570827.967674
1996	50335366388.85314
1997	59963166409.85389
1998	57799978062.81106
1999	62856945328.65761
2000	70194411093.61617
2001	78508350033.26279
2002	93460590502.31743
2003	117146311122.58617
2004	134254645288.737
2005	165392528565.61752
2006	194760703767.5925
2007	234407088411.7073
2008	272593506136.42896
2009	262987852169.3163
2010	289877092481.97394
2011	327319381913.839
2012	349319764018.454
2013	366747117420.4721
2014	395432833201.8854
2015	395856821944.7684
2016	385930389422.1679
2017	424373921578.7131
2018	458222076778.1099
2019	477477295185.37415
2020	482914202000.4744
2021	547432728298.51056
2022	597808916376.1279