Year	current US$
1992	2000000
1993	9000000
1994	12000000
1995	8000000
1996	63000000
1997	37000000
1998	61889999.3896484
1999	44549999.237060495
2000	58299999.237060495
2001	56009998.3215332
2002	74010002.1362305
2003	47810001.373291
2004	56389999.3896484
2005	51580001.8310547
2006	51500000
2007	77650001.5258789
2008	157570007.32421902
2009	97309997.55859381
2010	70519996.6430664
2011	21579999.9237061
2012	22309999.4659424
2013	29459999.084472697
2014	30469999.3133545
2015	18670000.0762939
2016	13529999.7329712
2017	19920000.0762939
2018	18709999.084472697
2019	15859999.6566772
2020	14079999.923706101
2021	15329999.923706101
2022	14260000.2288818