Year	current US$
1960	151700000
1961	145300000
1962	153500000
1963	201200000
1964	235000000
1965	261100000.00000003
1966	266100000.00000003
1967	283600000
1968	296600000
1969	299000000
1970	338500000
1971	371100000
1972	389500000
1973	519100000
1974	811400000
1975	858000000
1976	1204100000
1977	1439000100
1978	1655000100
1979	1784400000
1980	1963300000
1981	2031500000
1982	1628999900
1983	1316999900
1984	1434800000
1985	1262260869.5652175
1986	1055296757.9908676
1987	1579400000
1988	1720152709.923664
1989	1890234375
1990	1900459186.6079268
1991	2028682330.85697
1992	2849942850.2909703
1993	2972656774.7277327
1994	3226456526.2107863
1995	3726925962.895398
1996	3539822366.692934
1997	4197706680.7394824
1998	5091730420.367822
1999	5011108418.073741
2000	5584251720.20823
2001	7731202010.33442
2002	8255070815.807305
2003	8807734236.673426
2004	10090013799.793016
2005	11154959729.859167
2006	12662747619.870016
2007	14441173645.66815
2008	15422428184.128418
2009	12501436111.133234
2010	15009546895.785446
2011	17803200264.905495
2012	18197166630.17857
2013	18382911953.878506
2014	19287280918.720375
2015	18695335942.14883
2016	18243717678.186016
2017	19758074202.8479
2018	21149627997.257675
2019	21534755007.926777
2020	19272211289.037964
2021	27347177475.45119
2022	33872884101.22345
2023	33613656192.543407