Year	current US$
1960	24388554817.062607
1961	23882008590.1298
1962	24150679859.34154
1963	27356682079.698242
1964	30303570506.82307
1965	31978588767.03306
1966	33815362284.899914
1967	34061187709.36529
1968	36421537455.96361
1969	40394118882.4972
1970	44541225718.60795
1971	48753247493.646774
1972	54538126313.533356
1973	80111508923.3835
1974	132460020893.47421
1975	129355596688.9414
1976	147729086873.54495
1977	172486128739.2973
1978	185694754916.49603
1979	255521005748.87286
1980	336301681144.72046
1981	310127203386.44836
1982	299939551258.2137
1983	300219800909.794
1984	317893372570.1295
1985	309308496539.13513
1986	276185506820.33203
1987	326829872695.80334
1988	369231540017.4907
1989	417951207398.1498
1990	472312585201.4169
1991	481559158744.0293
1992	524152551616.703
1993	552529681469.2296
1994	648882876717.9868
1995	783964998967.6373
1996	851750405052.2946
1997	935016343766.6393
1998	896533266930.6693
1999	977816348804.6522
2000	1189891718417.8875
2001	1159774571479.7395
2002	1267464971476.6787
2003	1515822808082.3042
2004	1932279743746.1477
2005	2379969519647.5156
2006	2897154246573.7754
2007	3480319988177.234
2008	4190219804702.813
2009	3327577809113.3794
2010	4308543114411.938
2011	5272239422960.986
2012	5472239851839.206
2013	5602523626052.601
2014	5717248185352.214
2015	5100446390199.379
2016	4837261113727.84
2017	5418260597782.985
2018	6004609656855.775
2019	5953764669150.649
2020	5705116906740.9
2021	7403919058866.226
2022	8298427923008.446
2023	7896333819537.253