Year	current US$
1970	501000000
1971	517000000
1972	538000000
1973	644000000
1974	732000000
1975	921000000
1976	637000000
1977	575000000
1978	674000000
1979	793000000
1980	1003000000
1981	1036000000
1982	1142000000
1983	1245000000
1984	1441000000
1985	1992000000
1986	1593000000
1987	1375000000
1988	1530000000
1989	1423000000
1990	1840000000
1991	1896000000
1992	1757000000
1993	1977000000
1994	2370000000
1995	1526000000
1996	856000000
1997	979000000
1998	969660001.5256554
1999	1578620000.1519172
2000	1668689997.9449801
2001	2504040006.753058
2002	3072409962.3579535
2003	5044769950.95611
2004	4280229977.4028387
2005	5877550029.329962
2006	7489829961.102457
2007	6503620077.475912
2008	9135950039.336462
2009	11025029923.651373
2010	11997310040.459044
2011	13442090035.192675
2012	12136980123.939
2013	12755399887.625126
2014	12152240071.792158
2015	12623869783.356794
2016	12906680047.597742
2017	13849840023.89573
2018	13644680028.164762
2019	12891279871.752491
2020	14266620035.52542
2021	16516229974.683378
2022	15260280061.652891