Year	current US$
1960	625000000
1961	711000000
1962	680000000
1963	663000000
1964	723000000
1965	718000000
1966	892000000
1967	819000000
1968	852000000
1969	1028000000
1970	1063000000
1971	1109000000
1972	1086000000
1973	1290000000
1974	2148000000
1975	1525000000
1976	1864000000
1977	2539000000
1978	3408000000
1979	4808000000
1980	5797000000
1981	7181000000
1982	3989000000
1983	3085000000
1984	3574000000
1985	3072000000
1986	3436000000
1987	4396000000
1988	5292000000
1989	7233000000
1990	7940000000
1991	8171000000
1992	10183000000
1993	11133000000
1994	11820000000
1995	15898000000
1996	19199000000
1997	20822000000
1998	19882000000
1999	15987000000
2000	18507000000
2001	17429000000
2002	17091000000
2003	19322000000
2004	24794000000
2005	32735000000
2006	38406000000
2007	47164000000
2008	62787000000
2009	42806000000
2010	59207000000
2011	74695000000
2012	80073000000
2013	79353000000
2014	72852000000
2015	62388000000
2016	59376000000
2017	65230000000
2018	74612000000
2019	69855000000
2020	59207000000
2021	92397000000
2022	104529000000
2023	85506000000