Year	current US$
1964	34185537257.242626
1965	37202734235.921715
1966	39425715637.14207
1967	41218194136.53503
1968	44256728996.405594
1969	48699213539.5912
1970	53166234289.06985
1971	59637443515.197464
1972	64041009677.71733
1973	80999331483.81602
1974	95410001554.08359
1975	112447062923.6122
1976	114376842116.38759
1977	128179986665.1343
1978	149669036135.30075
1979	179379360310.17395
1980	223331369472.13538
1981	235039112019.66592
1982	224292013366.35574
1983	233822442992.5915
1984	222092740676.72162
1985	191512908896.72012
1986	229397734343.82208
1987	282382294964.761
1988	301856518518.724
1989	315090673395.79254
1990	381425782009.48566
1991	408317555339.9789
1992	375391840875.1909
1993	370579432869.405
1994	357442396245.91437
1995	407620087741.6773
1996	418472582340.28015
1997	435865699454.9277
1998	425171823619.97955
1999	424160634024.0144
2000	429659786577.7051
2001	397895885990.3334
2002	402734323681.9496
2003	524256676545.6698
2004	641070085645.0929
2005	724010279217.2664
2006	805876462107.2908
2007	925918344650.796
2008	1006276794379.1637
2009	1048039563598.6758
2010	1195142743978.2717
2011	1336609588117.1675
2012	1387900472637.2798
2013	1461602927687.0059
2014	1474604779736.8723
2015	1374240379061.937
2016	1303962921685.633
2017	1444020106692.568
2018	1566003374583.6648
2019	1561149568072.3096
2020	1490508236468.8933
2021	1695207278228.163
2022	1798632588366.939
2023	1935608329221.0579