Year	current US$
1960	42000000
1963	77000000
1964	77000000
1965	125000000
1966	106000000
1967	30000000
1968	95000000
1969	138000000
1970	39000000
1971	113800000
1972	136200000
1973	192200000
1974	103600000
1975	139000000
1976	137900000
1977	-58100000
1978	124700000
1979	176200000
1980	406600000
1981	125500000
1982	-336300000
1983	24000000
1984	535200000.00000006
1985	155100000
1986	-68700000
1987	244700000
1988	159400000
1989	384000000
1990	417963000
1991	29789000
1992	309433000
1993	373477000
1994	598373000
1995	635423000
1996	324431000
1997	417656000
1998	32000000
1999	495700000
2000	311711000
2001	475211000
2002	242950000
2003	256903000.00000003
2004	342111000
2005	346978000
2006	377830000
2007	313374000
2008	399267000
2009	355000000
2010	93600000
2011	500000000
2012	140200000
2013	90200000
2014	128600000
2015	84500000
2016	121200000
2017	-193500000
2018	-142100000
2019	40000000
2020	515200000.00000006
2021	-1201500000
2022	929000000
2023	570500000