Year	current US$
1960	0
1961	0
1962	0
1963	0
1964	0
1965	0
1967	1580000.04291534
1968	100000.00149011599
1969	1840000.05200505
1970	2739999.9853223604
1971	2579999.97958541
1972	3669999.9682605304
1973	5599999.9511987
1974	21200000.166892998
1975	23830000.087618798
1976	36330000.2142787
1977	75980000.1308322
1978	97130000.4124641
1979	128539996.93691699
1980	165799999.415874
1981	160479999.57203898
1982	134900001.496077
1983	134519997.63399398
1984	149240000.009537
1985	133120000.345632
1986	211200002.163649
1987	251009998.41094
1988	291369996.95002997
1989	257570000.603795
1990	302020001.292229
1991	245440002.03907502
1992	336309996.396303
1993	301729998.765513
1994	298789998.41213197
1995	406829997.71088403
1996	409809997.439384
1997	396329996.198416
1998	378389999.27043897
1999	269680000.308901
2000	321410001.24439603
2001	523539994.925261
2002	598489996.58227
2003	702640005.707741
2004	714549997.717142
2005	761500004.4107441
2006	643819994.151592
2007	866749996.781349
2008	975419999.6329839
2009	800779998.976737
2010	1073469999.18297
2011	578160003.175959
2012	530769990.92660797
2013	599639998.445287
2014	506469993.857667
2015	432930008.191615
2016	458179999.96058595
2017	493040004.08947504
2018	576180005.395785
2019	530409996.58405805
2020	551120003.223419
2021	476250007.972121
2022	463170004.7403574