Year	current US$
1961	1639999.98569489
1967	310000.002384186
1992	129999.995231628
1993	119999.997317791
1994	150000.005960464
1996	50000.0007450581
1997	310000.002384186
1998	790000.021457672
1999	66129997.253418
2000	52619998.9318848
2001	57950000.762939505
2002	75849998.4741211
2003	42689998.626709
2004	25549999.237060502
2005	34689998.626709
2006	38500000
2007	46639999.3896484
2008	38990001.6784668
2009	34639999.3896484
2010	33659999.8474121
2011	27649999.6185303
2012	19719999.3133545
2013	17329999.9237061
2014	17680000.3051758
2015	12970000.2670288
2016	14579999.923706101
2017	15439999.5803833
2018	15949999.8092651
2019	14750000
2020	14590000.1525879
2021	17170000.0762939
2022	12340000.1525879