Year	current US$
1970	60516480.8305315
1971	64890370.7118381
1972	87075796.7938719
1973	105892235.616751
1974	143445347.827913
1975	170986879.792082
1976	189953581.735701
1977	221141969.915209
1978	297463863.852555
1979	349423616.19153
1980	359214177.830306
1981	378473810.618097
1982	333567716.849075
1983	301017532.512625
1984	269443652.33287
1985	302212462.16399
1986	405972585.352019
1987	504453644.313481
1988	505995895.278665
1989	482338745.791586
1990	515236680.886911
1991	482231380.410719
1992	455568967.420725
1993	307322075.834507
1994	400363489.375671
1995	527687940.128541
1996	714775060.180115
1997	782722527.481766
1998	880107367.402025
1999	652697641.371635
2000	645127096.892047
2001	656047739.056248
2002	755517161.821532
2003	897571127.350977
2004	1011467728.41925
2005	1215687557.65736
2006	1710161374.0763
2007	1972468804.592
2008	2065737290.62255
2009	1967168900.61021
2010	1944800088.85164
2011	2078467401.16077
2012	2625885528.041
2013	2844350768.53045
2014	3030017914.01598
2015	3077920855.7712
2016	3594666339.00309
2017	3919527406.43362
2018	4423015595.62792
2019	4810836139.13589
2020	4818442105.83566
2021	5293812407.41872