Year	current US$
1960	0
1961	0
1962	0
1963	0
1964	0
1965	0
1966	0
1967	0
1968	89999.9979883432
1969	529999.990016222
1970	1860000.01430511
1971	1749999.95715916
1972	1359999.9919533702
1973	3169999.97012317
1974	9129999.97660518
1975	4600000.01639128
1976	6530000.055208799
1977	6450000.15757978
1978	24250000.1098961
1979	21539999.946951903
1980	13929999.6625632
1981	20309999.6913224
1982	11850000.2399087
1983	8539999.939501291
1984	9449999.94151294
1985	21189999.833703
1986	23020000.4465878
1987	24599999.813362997
1988	20360000.0310689
1989	41990000.2162904
1990	471270004.76419896
1991	1064309987.89147
1992	439039998.717606
1993	435729996.67748797
1994	722509994.557127
1995	540389994.129539
1996	799210011.810064
1997	885870019.0167869
1998	1544209989.27951
1999	1948239978.83499
2000	2074950003.85307
2001	2116229994.30448
2002	1313529996.57393
2003	2180239970.06752
2004	3081680004.21301
2005	99070000.41008
2006	181709998.20902902
2007	175130004.102364
2008	280800004.005432
2009	232310001.194477
2010	198819999.396801
2011	173509999.848902
2012	72209999.807179
2013	59169998.6457825
2014	-124299998.283386
2015	15009999.9569356
2016	64629998.6932427
2017	23979999.8104572
2018	49210001.7666817
2019	19249999.8807907
2020	12629999.9430776
2021	23709999.978542298
2022	1959999.993443485