Year	current US$
1960	910000
1961	2440000
1962	2060000
1963	3140000
1964	5390000
1965	10190000
1966	11460000
1967	12180000
1968	12140000
1969	10250000
1970	17520000
1971	21038886.0649464
1972	31392035.1906108
1973	57009956.5880692
1974	87134127.5452815
1975	115015268.681692
1976	157507000.864794
1977	267844206.326265
1978	448732680.915465
1979	609085045.676101
1980	761851448.655806
1981	805699174.810682
1982	739000443.511633
1983	680192261.49359
1984	666268499.853898
1985	533616678.383128
1986	446670787.249398
1987	497020839.705486
1988	323664132.631777
1989	432549726.653875
1990	661424244.92467
1991	962115474.402437
1992	561527907.654654
1993	631179308.078492
1994	1030734741.89164
1995	1092913738.09326
1996	1049286715.3079
1997	835677713.982125
1998	864740246.668403
1999	978049765.03141
2000	762827426.358737
2001	713509965.884361
2002	629194593.795789
2003	968858254.4114
2004	1168046778.98545
2005	1297088538.07535
2006	1702147178.6523
2007	2461472077.25277
2008	2844555966.51468
2009	3838642172.52784
2010	4136814606.00527
2011	4950058149.05874
2012	4556608672.79258
2013	5555579805.33582
2014	6668895918.56047
2015	5659292546.9591
2016	6579009336.14371
2017	7536005653.42124
2018	7360265795.0412
2019	7316170475.62534
2020	8704248621.80502
2021	9181766330.24015
2022	9041407817.86083
2023	9342395909.59266