Year	current US$
1960	9859999.33257699
1961	34479999.68566
1962	19200000.8299947
1963	29970000.024884902
1964	7190000.14662743
1965	44340000.6778538
1966	67590002.1325797
1967	117030000.541359
1968	82160003.2225251
1969	82369995.7598001
1970	132779996.331781
1971	128090000.02779101
1972	129469996.42066701
1973	215820001.315325
1974	314079994.922504
1975	381679997.215047
1976	346649996.20989
1977	374520007.00496095
1978	538239995.030686
1979	617849995.929748
1980	701460000.755265
1981	791609989.434481
1982	1072280006.09949
1983	1135140008.07144
1984	1249900008.5853
1985	1149340021.88966
1986	1301150028.9421499
1987	2397570020.92898
1988	2493099983.1669
1989	3044370003.2495
1990	3060230056.85396
1991	3379000024.8272
1992	3597039967.14391
1993	3430240076.0762396
1994	3428330007.66113
1995	3978440008.61794
1996	2806660000.8364797
1997	1966589971.2257102
1998	3445039982.11026
1999	4745059963.24681
2000	3472659968.56429
2001	2565420022.57891
2002	2425290001.01238
2003	1761820041.46092
2004	1985589998.0906398
2005	5965710109.0997505
2006	1405520004.15511
2007	1278210000.3007798
2008	1729570004.10557
2009	157250033.520162
2010	51740014.2643601
2011	-293470016.511157
2012	-1568150021.67784
2013	-1166409996.07742
2014	-1356979925.48347
2015	-1501500017.65415
2016	-1436520012.56123
2017	-1883349967.90066
2018	-1875600015.84888
2019	-1982220037.22936
2020	16180023.683234999
2021	-96009990.7964468
2022	782060034.5283747
