Year	current US$
1981	1800000.01192093
1982	2379999.995231627
1983	2730000.0675022616
1984	3210000.01579523
1985	4060000.021010637
1986	5549999.900162224
1987	12440000.126138335
1988	7510000.050067902
1989	5960000.09775162
1990	9670000.016689299
1991	5720000.058412547
1992	5129999.998956918
1993	6960000.112652786
1994	4449999.956414106
1995	7550000.138580799
1996	5990000.005811456
1997	2570000.045001505
1998	1720000.0006705523
1999	-380000.0064074999
2000	2499999.9571591653
2001	1709999.9338388436
2002	6650000.102818015
2003	4039999.961853028
2004	8160000.139847396
2005	4690000.059083109
2006	7310000.076889992
2007	22270000.159740444
2008	4569999.8736381475
2009	8889999.751001595
2010	9690000.087022789
2011	11539999.90224839
2012	14470000.088214867
2013	16709999.818354845
2014	6149999.871850021
2015	6077713.4448289815
2016	11699475.098401297
2017	15411604.173481463
2018	22310008.42433424
2019	21922553.84474994
2020	11081494.126468902
2021	9157999.94766713
2022	12415480.017662048