Year	current US$
1960	261674780.36194533
1961	286908230.5934946
1962	296211724.7812247
1963	336132508.5606226
1964	366595728.4151786
1965	364399202.8529525
1966	383428018.95959634
1967	376421364.29577357
1968	455638468.383541
1969	456992370.6969504
1970	463815284.05012274
1971	489184094.9275433
1972	551130042.1838278
1973	778862373.0564798
1974	781870974.3510251
1975	1099793780.9623218
1976	1141240570.9443731
1977	1520272149.7280319
1978	2044706549.1673915
1979	2413952705.254572
1980	2633477643.3999968
1981	2237503276.4425693
1982	1825589207.214508
1983	1496328660.4739552
1984	1651193438.481609
1985	1851699546.3968391
1986	2606594227.7438045
1987	2943814892.3125033
1988	3285686864.5570116
1989	3192277409.999293
1990	3508481692.8291144
1991	3493409771.8251915
1992	3793090612.957823
1993	3116584049.7589197
1994	2100306451.478573
1995	2720072806.360007
1996	2986569780.3449
1997	2733537301.3199673
1998	3049211946.179838
1999	2871743681.288473
2000	2684757228.515331
2001	2904372884.200224
2002	3382906521.976984
2003	4415268778.930569
2004	3912164256.7210097
2005	3861575544.1322412
2006	4031069494.341898
2007	4480461612.610418
2008	5515728192.500323
2009	5167597251.301556
2010	6109981930.226992
2011	6783445772.847728
2012	5944556504.555625
2013	6560660997.79011
2014	7444531507.005678
2015	8412570348.024474
2016	8439877843.546927
2017	8896109448.482258
2018	10447784689.987167
2019	9472993128.395079
2020	10672768181.707268
2021	11778574737.998037
2022	11076024855.60381
2023	11323265927.820288