Year	current US$
1990	5226060.75742324
1991	4369306.74526571
1992	2291747.26064148
1993	207563.692216519
1994	29327.5823927704
1995	16512582.0302581
1996	142807.18161081
1997	192391.977637046
1998	472634.963207335
1999	92672.2121121071
2000	1029427.81354549
2001	3482400.26220871
2002	1271261.55606717
2003	1466952.42991656
2004	13922163.341519
2005	9210586.71413974
2006	10628110.8890952
2007	17218200.2411625
2008	60740090.2281787
2009	18203633.9237225
2010	32583727.128838
2011	46358957.5249254
2012	19172048.9648599
2013	9470959.44579065
2014	6405058.74061611
2015	4262735.28908129
2016	5332950.39794501
2017	7304815.52700955
2018	8714602.13410197
2019	5934115.18025726
2020	4908698.1029445
2021	9434958.76754864