Year	current US$
1960	450750752.9687553
1961	487417350.90691596
1962	533373736.4913301
1963	583845734.4424332
1964	580367093.0650699
1965	671343283.5443286
1966	700663782.3082536
1967	659489375.1990491
1968	640214226.589192
1969	623467985.9569782
1970	648416621.9864573
1971	692268724.9712833
1972	741693954.4488907
1973	946742746.1475328
1974	1020046652.3565717
1975	1039256097.5097625
1976	1060730182.8804756
1977	1290953318.8228133
1978	1744550224.8423774
1979	2051934893.3764353
1980	2475601401.1862154
1981	2101504797.4589825
1982	1945903109.7621872
1983	1762371540.2440116
1984	1406830607.7747307
1985	1398279033.965237
1986	1886598017.6878533
1987	2171449535.647513
1988	2234695352.3331294
1989	2197434987.1067147
1990	3536335383.6266184
1991	3309124310.386883
1992	3411197100.1323156
1993	3075790120.911422
1994	1947256704.5794585
1995	2321200225.521697
1996	2458045616.1648965
1997	2343959499.728555
1998	2741213724.1217723
1999	2639591995.2335744
2000	2336466415.52718
2001	2562006013.855644
2002	2922900483.9199934
2003	3555180320.114061
2004	3991628172.3826056
2005	4657521670.83218
2006	5051726203.897445
2007	6067304911.2265005
2008	7693546227.274899
2009	7756099258.058304
2010	8283686875.697843
2011	9327272805.035192
2012	9746582481.363693
2013	10626393166.27623
2014	11351529661.746996
2015	10161942025.714113
2016	10734604834.95419
2017	11600276120.444653
2018	13405990160.981457
2019	13479237677.172659
2020	13156291934.165424
2021	15188308377.349913
2022	14058647971.55275
2023	16182366023.881662