Year	current US$
1965	114039500.59126753
1966	132757528.04437447
1967	139029537.2433213
1968	160818235.86674595
1969	161210236.4416801
1970	179078929.315763
1971	197525767.79173467
1972	270822782.02667373
1973	433095526.6861359
1974	1073591623.999176
1975	1168304305.6551259
1976	1423037167.087171
1977	1732721160.941215
1978	1941579358.1864755
1979	2803834158.481861
1980	4928806542.84871
1981	4366230382.848044
1982	4264202520.998586
1983	3844632166.773148
1984	3782553233.98105
1985	3523532486.4213805
1986	2358574402.606391
1987	2754485672.486435
1988	2690684124.874219
1989	2985532273.1659093
1990	3520487626.983895
1991	3701774188.880206
1992	4183632940.3849187
1993	4105729020.6468534
1994	4087220218.8754544
1995	4734103536.46706
1996	5115454089.632854
1997	5197311972.069078
1998	4051142386.3021197
1999	4600116699.1257
2000	6001282104.08228
2001	5601018684.249742
2002	5843368267.853911
2003	6557397070.22741
2004	7872202803.408771
2005	9531420027.79385
2006	11470464771.013
2007	12247677993.924765
2008	14393434224.759678
2009	10732595016.118177
2010	13707280259.97628
2011	18525128526.376625
2012	19048443340.773243
2013	18094321616.795853
2014	17097802752.872839
2015	12930291487.95813
2016	11400466356.389812
2017	12128183904.450096
2018	13566937673.796574
2019	13469235364.703175
2020	12005799653.983503
2021	14006496617.445808
2022	16681536466.7183
2023	15128292953.509842