Year	current US$
1975	1127104004
1976	924339477.5
1977	1197053955
1978	1697034912
1979	2486267578
1980	2968488037
1981	2876444824
1982	2635154053
1983	2187293945
1984	2199776855
1985	2163800537
1986	2654412598
1987	3371763184
1988	3524135010
1989	3705802979
1990	4478965820
1991	4717690918
1992	4762224121
1993	4315121582
1994	3805934326
1995	3952520159.8245
1996	3708172449.94715
1997	3487517948.59551
1998	3531591602.63014
1999	248140557.57501
2000	258747231.699555
2001	342123729.909263
2002	309037742.69655
2003	384011510.133012
2004	385229331.565657
2005	386598229.553513
2006	440128945.730434
2007	609952878.785664
2008	640917115.94575
2009	598188764.258388
2010	516896597.979797
2011	539538479.707789
2012	461187847.841189
2013	446468761.465534
2014	437460850.716119
2015	369222823.045023
2016	424677827.864452
2017	490417613.183266
2018	545035055.347985
2019	617601901.893932
2020	723294228.041681
2021	776567248.845599
2022	976012728.125003
2023	1335444809.01182