Year	current US$
1970	156000000
1971	190000000
1972	147000000
1973	130000000
1974	167000000
1975	179000000
1976	223000000
1977	229000000
1978	284000000
1979	386000000
1980	580000000
1981	678000000
1982	627000000
1983	763000000
1984	852000000
1985	1314000000
1986	878000000
1987	780000000
1988	768000000
1989	726000000
1990	996000000
1991	969000000
1992	1153000000
1993	1435000000
1994	1452000000
1995	1049000000
1996	635000000
1997	797000000
1998	713459993.833676
1999	945609990.1814013
2000	1074160001.6560402
2001	985919999.4560332
2002	1925289991.1012504
2003	4012369948.6646852
2004	2903129989.0112143
2005	3552649963.192642
2006	4923779993.792997
2007	4013210041.9662905
2008	6172639966.588467
2009	6896970006.78815
2010	6783259963.242338
2011	8497450096.1192
2012	7953940035.207199
2013	8880179963.618519
2014	8244150080.896915
2015	8465839867.694305
2016	9243899980.30663
2017	10254480012.236164
2018	10104510035.49621
2019	8908599948.506804
2020	10875879981.74131
2021	12094060018.537569
2022	11128430024.066948