Year	current US$
1961	159213430.2452648
1962	164271557.5620859
1963	168186297.20410672
1964	224495743.78401747
1965	255340475.01808292
1966	77715679.84021033
1967	90375213.55619241
1968	108335216.00505246
1969	88442160.2003944
1970	94199974.12764052
1971	102753363.62699819
1972	72082295.25889808
1973	24989252.24221006
1974	-1164128.225303567
1975	8701122.209526857
1976	-106883363.47028422
1977	-127832788.45672932
1978	-100705857.74167348
1979	-123257125.78308024
1980	-73929890.56951614
1981	-20937916.21347015
1982	-120862901.51068676
1983	-60284120.516670994
1984	-39818603.637145616
1985	65267756.191217415
1986	82181927.35462195
1987	144376625.01304546
1988	211370610.14341733
1989	165008156.55440634
1990	72418640.72249997
1991	342142888.7839686
1992	265397064.695625
1993	124034104.97655617
1994	829754408.2540967
1995	343238662.31460327
1996	169207939.2416664
1997	62790990.490626715
1998	148150640.8540554
1999	144221290.61724085
2000	60319664.05289931
2001	50309763.16200534
2002	40969835.154792
2003	90390989.62095578
2004	155299800.62789023
2005	416231694.2771087
2006	1095144091.5860014
2007	1005110669.4710907
2008	1150904678.7884955
2009	891808003.351656
2010	1706058801.4599946
2011	2741964446.0750747
2012	2348239768.053402
2013	2618783416.737176
2014	1645810554.1332893
2015	1326182848.0446105
2016	1662053013.8661025
2017	1910510234.0401297
2018	2277600728.7506123
2019	2512954666.360396
2020	2866098076.3564835
2021	2953162981.3583784
2022	2786129059.537425
2023	2980261110.3758206