Year	current US$
1996	25040000.915527303
1997	34169998.1689453
1998	57290000.9155273
1999	36400001.5258789
2000	24360000.6103516
2001	9640000.34332275
2002	14739999.7711182
2003	53970001.220703095
2004	22209999.084472697
2005	16690000.534057599
2006	16129999.160766602
2007	5389999.8664856
2008	10600000.3814697
2009	4949999.80926514
2010	2240000.00953674
2011	1759999.9904632599
2012	2640000.10490417
2013	6530000.20980835
2014	6820000.17166138
2015	10979999.5422363
2016	10939999.5803833
2017	16399999.618530298
2018	43200000.762939505
2019	19959999.084472697
2020	12920000.076293899
2021	3339999.91416931
2022	-3089999.91416931