Year	current US$
1960	132600000
1961	138750000
1962	147650000
1963	160450000
1964	177300000
1965	189000000
1966	209350000
1967	222950000
1968	239450000
1969	256750000
1970	296500050
1971	303500050
1972	337998529.00661945
1973	373499863.25006837
1974	423000000
1975	484000050
1976	580999950
1977	677500000
1978	1132797273.85
1979	1383582783.05
1980	1651275917.0500002
1981	1827177394.05
1982	1984709734.55
1983	2182172391.45
1984	2389794461.0499997
1985	2629186047.75
1986	2831219894.6
1987	3032290439.6
1988	2853954949.914163
1989	2546993210.6551723
1990	2178198516.731518
1991	2158791900.991216
1992	2253055548.4821477
1993	2343584429.3365664
1994	2131453798.4016745
1995	2465725422.3149114
1996	2387725768.581081
1997	2716889231.939163
1998	3045740982.2747416
1999	3251830543.554007
2000	3646477153.0848603
2001	4056568449.9243226
2002	4309505995.537644
2003	4581307399.536619
2004	4969075590.10364
2005	5502656015.91135
2006	6217751082.708378
2007	7211848574.498151
2008	8279046949.289131
2009	8907769739.244566
2010	9604257188.37159
2011	10308502203.979862
2012	10861131407.91447
2013	11279954449.736338
2014	11884334220.002537
2015	12343054908.425201
2016	12678820748.028313
2017	13152841791.684315
2018	13800207239.943491
2019	14449600606.547783
2020	13769515847.871853
2021	16331999606.106678
2022	17951415579.44797
2023	19735312843.079166