Year	current US$
1975	662297424.3
1976	658915466.3
1977	754823120.1
1978	956470520
1979	1041822876
1980	1139075073
1981	948875671.4
1982	837334533.7
1983	848768920.9
1984	780039001.5
1985	817282897.9
1986	1098416260
1987	1275191284
1988	1430124512
1989	2736618164
1990	3583137695
1991	3972553223
1992	4475618164
1993	4580757324
1994	4612880859
1995	4936722168
1996	4947035645
1997	4328916992
1998	4204201172
1999	4466878906
2000	4004603516
2001	3933338623
2002	4534638939.10999
2003	5778136096.27102
2004	6562530149.38673
2005	6884305723.77046
2006	7268884910.03939
2007	8991846090.58459
2008	10479068216.8072
2009	11090651436.729
2010	10993669270.2742
2011	11728548904.613
2012	11171452382.4131
2013	11695085497.9929
2014	12161003266.0421
2015	10464912315.3811
2016	10786360682.2729
2017	11435497317.079
2018	12448569091.0714
2019	12330095211.5259
2020	12940698638.5776
2021	14063253460.606
2022	13428017139.2857
2023	14478051300.7512