Year	current US$
1975	37004108.70748973
1976	37936420.80047909
1977	61885090.691648394
1978	69682792.22393477
1979	85864863.52110575
1980	346343161.1395615
1981	340327151.59349674
1982	372395962.81012285
1983	407099885.64609957
1984	442201561.1793368
1985	488092278.6257645
1986	445483020.9317357
1987	488788345.8459703
1988	594292248.7943121
1989	657684084.920201
1990	325510863.62054396
1991	296574354.8948442
1992	285700000
1993	314920698.0559837
1994	375677422.56252176
1995	263411723.76075178
1996	303733903.4455325
1997	285138964.8486054
1998	390792025.05841994
1999	375478546.21389157
2000	368300000
2001	305200000
2002	352100000
2003	441300000
2004	365200000
2005	373250000
2006	618971500
2007	827957000
2008	714418550
2009	563043650
2010	443628100
2011	451327000.0000005
2012	382094600
2013	419701250.0000005
2014	383606350
2015	436252250
2016	392169350
2017	530081150
2018	648858600
2019	820386600
2020	283294100
2021	381205650
2022	735913450