Year	current US$
1968	48394811.75304206
1969	48346838.13055888
1970	50730398.93680406
1971	53544837.595807284
1972	58336881.159262456
1973	74417849.85693504
1974	94623011.47583906
1975	123051110.78856745
1976	131067863.01003936
1977	137836091.81618893
1978	157979511.6843792
1979	192229322.9436857
1980	242709158.46460843
1981	254053353.6487579
1982	228671503.23810086
1983	212993546.25526443
1984	209586268.7555157
1985	226476124.23226914
1986	237980399.61735117
1987	267681289.92883313
1988	265450673.314185
1989	276036829.8219496
1990	292371831.0500147
1991	392770811.40351975
1992	538927353.8289213
1993	753788833.4774344
1994	755431204.8248056
1995	783891424.7887305
1996	817291396.2620612
1997	827321439.7810494
1998	820172541.4584944
1999	818539846.5149679
2000	821353700.9095131
2001	758144234.76253
2002	624788610.6890926
2003	572473398.092473
2004	700751708.643722
2005	795117238.844294
2006	1023447545.8630848
2007	1146597765.9736543
2008	1368407502.3957977
2009	1529142881.6669059
2010	1594476328.4754355
2011	1398703726.0859003
2012	1450724871.1752722
2013	1433029442.6703882
2014	1306587878.3138936
2015	1302539892.492266
2016	1339838186.506142
2017	1458120056.4132817
2018	1642760729.2239635
2019	1768269711.04523
2020	1803007520.6938396
2021	1956416478.494056
2022	2159967035.434014
2023	2308385139.3354497