Year	current US$
1960	891000000
1961	956000000
1962	1047000000
1963	1120000000
1964	1187000000
1965	1396000000
1966	1651000000
1967	1784000000
1968	1944000000
1969	2053000000
1970	2371000000
1971	3850000000
1972	5491000000
1973	8988000000
1974	35555000000
1975	29673000000
1976	38286000000
1977	43466000000
1978	40735000000
1979	63427000000
1980	109083000000
1981	119876000000
1982	79077000000
1983	45861000000
1984	37545000000
1985	27481000000
1986	20185000000
1987	23199000000
1988	24377000000
1989	28382000000
1990	44417000000
1991	47797000000
1992	50280000000
1993	42395000000
1994	42614000000
1995	50040000000
1996	60729000000
1997	60732000000
1998	38822000000
1999	50761000000
2000	77583000000
2001	68064000000
2002	72453000000
2003	93245000000
2004	125997000000
2005	180711000000
2006	211305000000
2007	233329000000
2008	313462000000
2009	192314000000
2010	251143000000
2011	364699000000
2012	388401000000
2013	375872000000
2014	342433000000
2015	203550000000
2016	183579000000
2017	221835000000
2018	294373000000
2019	261603000000
2020	173854000000
2021	276179000000
2022	411184000000
2023	322256000000