Year	current US$
1979	16850000.3814697
1980	65500000
1981	475899993.89648396
1982	523380004.882813
1983	668799987.792969
1984	797479980.46875
1985	938750000
1986	1095140014.64844
1987	1377290039.0625
1988	1916119995.11719
1989	2067250000
1990	2030599975.58594
1991	1918750000
1992	2988260009.76563
1993	3202379882.8125
1994	3132290039.0625
1995	3463699951.17188
1996	2655899902.34375
1997	2060830078.125
1998	2456879882.8125
1999	2407000000
2000	1749020019.53125
2001	1497660034.17969
2002	1511520019.53125
2003	1361550048.82813
2004	1709949951.17188
2005	1798339965.82031
2006	1268520019.53125
2007	1714510009.76563
2008	1749949951.17188
2009	1471119995.11719
2010	671890014.648438
2011	-603609985.351563
2012	-180529998.779297
2013	-656549987.792969
2014	-947070007.324219
2015	-306290008.544922
2016	-791429992.675781
2017	-989940002.441406
2018	-705270019.53125
2019	-608580017.089844
2020	-572500000
2021	-564140014.648438
2022	-282320007.324219