Year	current US$
1960	0
1961	0
1962	-639999.985694885
1963	300000.011920929
1964	1299999.95231628
1965	3200000.04768372
1966	1440000.0572204601
1967	2240000.00953674
1968	1259999.9904632599
1969	1829999.94233251
1970	1519999.99955297
1971	1079999.97213483
1972	1069999.95186925
1973	1509999.99977648
1974	2300000.04172325
1975	2810000.03963709
1976	2669999.9570846604
1977	-529999.9825656409
1978	7319999.94255602
1979	6129999.98033047
1980	9279999.73297119
1981	7139999.8664856
1982	59999.9986588955
1983	10180000.3051758
1984	3680000.0667572
1985	3650000.09536743
1986	6179999.92519617
1987	-669999.971985817
1988	7799999.96162951
1989	3640000.10490417
1990	2559999.95209277
1991	41720001.5187263
1992	58299999.9672174
1993	9100000.38146973
1994	14219999.8572469
1995	15130000.162869701
1996	6809999.68573451
1997	3940000.1466274303
1998	2240000.08776784
1999	12709999.9301136
2000	12469999.9857694
2001	9450000.1296401
2002	57599999.7742474
2003	11629999.8834729
2004	15009999.778121699
2005	14080000.044778
2006	37070000.495761596
2007	-2560000.1681596
2008	2590000.05945563
2009	-3270000.24355948
2010	-2940000.17084181
2011	-2409999.7784942403
2012	-1929999.91215765
2013	-3080000.10438263
2014	-2420000.01482666
2015	5910000.1566111995
2016	70800002.8207898
2017	10079999.879002599
2018	12680000.036954898
2019	11280000.047758201
2020	14350000.2734363
2021	18070000.4696846
2022	75390001.00642444
