Year	current US$
1960	34467505.24109015
1961	36011530.39832285
1962	32620545.073375262
1963	42491614.2557652
1964	41381551.36268344
1965	69998600.02799945
1966	70558588.82822344
1967	73218535.62928742
1968	83858322.83354333
1969	96038079.23841524
1970	109477810.44379114
1971	111997760.04479912
1972	110737785.24429512
1973	111159333.04400173
1974	161391502.708868
1975	146333333.33333334
1976	146300000
1977	169529411.76470587
1978	106304347.82608695
1979	78450000
1980	53030000
1981	25000000
1982	136000000
1983	118333333.33333333
1984	221053992.32990047
1985	187633218.60077205
1986	237328207.68281895
1987	355521650.91070044
1988	360200000
1989	300265427.16148686
1990	229899070.77554545
1991	180636819.50045875
1992	166329395.65152043
1993	180293251.95008436
1994	240638117.73514163
1995	358540857.0034874
1996	432011745.4004751
1997	488252811.92496234
1998	545295208.7696065
1999	533464691.7153136
2000	439657236.9677214
2001	412455727.6484151
2002	454380484.7480367
2003	466160863.6491309
2004	505343142.8619298
2005	647606212.1314411
2006	707476689.651442
2007	848155690.3313195
2008	1055155313.3711678
2009	5045122051.68387
2010	5243013580.059352
2011	5319683107.27109
2012	5098016341.49436
2013	4785146748.840283
2014	5098577452.766203
2015	5702912688.372467
2016	4739733653.584829
2017	4772463471.741104
2018	5195672467.240879
2019	5467054356.45873
2020	5939074692.05467
2021	6660563828.274746
2022	7459896985.155271
2023	7688765795.892098