Year	current US$
1982	18600000.38
1983	12600000.38
1984	5500000
1985	4000000
1986	11500000
1987	11600000.38
1988	9899999.619
1989	15750000
1990	11620000
1991	20010000
1992	14960000
1993	14820000
1994	13240000
1995	3410000
1996	3696594.477
1997	3983188.629
1998	4269783.02
1999	4556377.411
2000	4842971.802
2001	5129566.193
2002	5416160.53247191
2003	6488296.56496251
2004	5373995.1442763
2005	5351981.98852422
2006	4322131.85612179
2007	4330027.1038899
2008	16750187.0233696
2009	20190171.0342958
2010	19650119.0243036
2011	29957650.2271424
2012	24964980.5146642
2013	34545175.9096169
2014	36523915.5801444
2015	38406676.6679131
2016	23574000
2017	48288166.8385007
2018	56715457.4913402
2019	98051579.0071256
2020	78641175.5067948
2021	89262870.7997894