Year	current US$
1960	29588750988.207188
1961	29051379748.53292
1962	27789365962.02567
1963	31812447315.688354
1964	35645060042.64046
1965	38212665602.035126
1966	40117539781.995285
1967	41930881694.081245
1968	44046517097.0408
1969	47138386647.475365
1970	54436441443.34667
1971	60188142168.22061
1972	66339875099.02763
1973	90624385965.3362
1974	143386125551.51877
1975	176391353764.4575
1976	182112921442.57532
1977	210043801696.4755
1978	232783471449.80685
1979	284155183426.4675
1980	385781943166.8779
1981	426525304728.96747
1982	397468248724.42944
1983	383269192927.5323
1984	380591393382.0097
1985	386220471222.9416
1986	369147311603.739
1987	393555509164.4552
1988	469467526726.82025
1989	514045950851.61523
1990	580032324324.8021
1991	595590410853.8608
1992	666637808138.4122
1993	756719648655.1665
1994	852694793785.6892
1995	1007367951873.131
1996	1099863376547.4495
1997	1181522500718.487
1998	1122058361677.0637
1999	1149501115979.8413
2000	1355296782803.8625
2001	1350876169491.0657
2002	1436257450592.0044
2003	1701604321785.9375
2004	2180708749316.1868
2005	2579384765208.9062
2006	3029030879296.884
2007	3673200225772.4727
2008	4482877428351.444
2009	3839506888904.9326
2010	4881760971477.101
2011	5985309743291.881
2012	6320887555718.048
2013	6558827695281.82
2014	6645209552057.496
2015	5916097828942.837
2016	5730019117819.533
2017	6479937054444.591
2018	7252458210774.421
2019	7084425165208.785
2020	6309298701294.459
2021	8208481492027.978
2022	9247278075566.697
2023	9026204948023.273