Year	current US$
1970	96000000
1971	139000000
1972	145000000
1973	98000000
1974	143000000
1975	216000000
1976	385000000
1977	602000000
1978	807000000
1979	829000000
1980	1086000000
1981	1147000000
1982	1231000000
1983	1378000000
1984	1612000000
1985	1989000000
1986	1581000000
1987	1508000000
1988	1173000000
1989	1295000000
1990	2781000000
1991	3519000000
1992	2115000000
1993	1587000000
1994	1363000000
1995	902000000
1996	911000000
1997	671000000
1998	1027620006.2725698
1999	1037830008.5105002
2000	982820001.7586353
2001	952770022.6027526
2002	1461029980.1696107
2003	3398019977.808001
2004	4846359934.3057785
2005	13011680010.972544
2006	6482789862.940088
2007	5630420109.210541
2008	5486149953.9986315
2009	5163780068.278315
2010	3723759949.594734
2011	3658090036.3028054
2012	3031600015.37204
2013	4416119956.046343
2014	3368379988.4617376
2015	3036269954.681396
2016	3430749991.8937693
2017	3326350056.2906265
2018	4161320007.562642
2019	4184430053.591731
2020	4489110079.407698
2021	5416189983.60634
2022	4173209967.970848