Year	current US$
1960	65570000.2983212
1961	69389999.8571724
1962	76180000.4523247
1963	74770000.1448393
1964	64470000.9562075
1965	119260000.59768601
1966	138110002.500936
1967	273979999.60929203
1968	195920004.13499802
1969	281779998.892918
1970	288899996.93073297
1971	347689996.257424
1972	410589996.734634
1973	557059999.765828
1974	644029991.811141
1975	509200002.452359
1976	444029995.46378905
1977	383320010.539144
1978	651609991.641715
1979	855349995.404482
1980	949870010.631159
1981	1272179979.05053
1982	1194670008.51594
1983	1220620011.7599201
1984	1304400020.3590798
1985	1378150011.966
1986	1713750038.1507
1987	2511070023.4249196
1988	3014339938.9348903
1989	3231090007.2026997
1990	3351050072.47254
1991	3089840016.4600496
1992	4692479995.075609
1993	4024880076.75298
1994	3854289986.8506904
1995	4359090009.76384
1996	2924360002.16939
1997	2105039973.0969203
1998	3831299968.14951
1999	5341189951.192591
2000	4007039985.36803
2001	2913710007.6153903
2002	2712509980.88345
2003	1946020059.41048
2004	1926680020.89672
2005	3219209979.56395
2006	1394839971.77333
2007	1184279969.3401902
2008	86749983.6161733
2009	1228460013.2666502
2010	973190001.983196
2011	-197680017.247796
2012	-107480053.26651
2013	2000830073.60063
2014	161700028.43625802
2015	55020030.923187695
2016	-101029927.879572
2017	187550023.831427
2018	-1165150012.49313
2019	-346180031.090975
2020	1718900016.94858
2021	906519978.165627
2022	1256380040.2879736