Year	current US$
1970	24692306.52
1971	46596698.76
1972	98605583.19
1973	181810546.9
1974	271194152.8
1975	243576324.5
1976	232826538.1
1977	239277359
1978	187292373.7
1979	231978363
1980	334470336.9
1981	285688446
1982	265836181.59999996
1983	214980117.8
1984	194567581.2
1985	189676162.7
1986	224538681
1987	228747100.8
1988	251341339.1
1989	302310730
1990	319779052.7
1991	415871521
1992	206126342.8
1993	288913970.9
1994	292412139.9
1995	345817108.2
1996	346233947.8
1997	342774261.5
1998	932067504.9
1999	1370329468
2000	1298060059
2001	1421891113
2002	1517669556
2003	1874189575
2004	2227846924
2005	2118672481.03345
2006	2302162764.5374
2007	2592071465.95299
2008	2984770130.75056
2009	2909179496.78333
2010	2989978304.90619
2011	3622755852.38093
2012	3450702386.15693
2013	3895700778.52154
2014	4962526962.17432
2015	4750215267.75261
2016	4885123590.77349
2017	5369093592.33248
2018	6206351378.91026
2019	6423312126.48802
2020	6214084544.94524
2021	7042693661.03896
2022	7119998421.09039
2023	8233727518.00295