Year	current US$
1978	801227.9390471568
1979	552176.7949378578
1980	562486.0517122804
1981	614790.5977258494
1982	580202.3202006769
1983	584676.7836470678
1984	115838.34933862447
1985	129199.41755505817
1986	106953.73047927304
1987	66518.22599392233
1988	178137.80365463768
1989	160525.44802810697
1990	291946.4161235605
1991	3166333.789287061
1992	2919991.0696450183
1993	2891823.5230116416
1994	3197731.165979773
1995	3365447.69475617
1996	3553823.844966166
1997	3471032.670812985
1998	3133692.8361606905
1999	3520113.552050066
2000	2978037.7974138856
2001	2783171.1527938256
2002	2845705.36297861
2003	3664147.2870730795
2004	4538254.034559243
2005	5314198.918190753
2006	5112001.524127373
2007	7267344.561666578
2008	7354103.162447219
2009	6368717.872326155
2010	8765602.081898144
2011	10518503.542682908
2012	9453293.17323134
2013	8358409.527312536
2014	8353893.180140314
2015	6579645.253138405
2016	7521628.528992414
2017	8107633.7527725445
2018	8727058.633664373
2019	6754253.288039482
2020	7878539.450303872
2021	11361520.13962977