Year	current US$
1967	9999.99977648258
1968	409999.99642372096
1969	1649999.97615814
1970	3700000.04768372
1971	5800000.19073486
1972	7000000
1973	12079999.923706101
1974	14470000.2670288
1975	14460000.038146999
1976	13239999.7711182
1977	13979999.5422363
1978	4929999.82833862
1979	16200000.7629395
1980	20549999.237060502
1981	13560000.4196167
1982	12939999.5803833
1983	12090000.1525879
1984	3240000.00953674
1985	3390000.10490417
1986	11270000.4577637
1987	5840000.15258789
1988	6230000.01907349
1989	10739999.7711182
1990	-1590000.0333786
1991	37560001.373291
1992	2500000
1993	15409999.8474121
1994	1539999.96185303
1995	-1190000.0572204601
1996	7110000.1335144
1997	-4099999.90463257
1998	1450000.04768372
1999	1059999.9427795399
2000	980000.019073486
2001	1169999.95708466
2002	1399999.97615814
2003	1399999.97615814
2004	-6909999.84741211
2005	-449999.988079071
2006	10340000.1525879
2007	-10079999.923706101
2008	-6550000.19073486
2009	-6190000.05722046
2010	-5800000.19073486
2011	-5039999.96185303
2012	-4099999.90463257
2013	-4199999.80926514
2014	-4780000.20980835
2015	-3920000.07629395
2016	-8890000.34332275
2017	-4159999.8474121103
2018	3240000.00953674
2019	2829999.92370605
2020	3319999.9332428
2021	2960000.03814697
2022	1279999.97138977