Year	current US$
1960	75000000
1961	89000000
1962	91000000
1963	101000000
1964	106000000
1965	108000000
1966	112000000
1967	122000000
1968	154000000
1969	142000000
1970	156000000
1971	163000000
1972	177000000
1973	226000000
1974	298000000
1975	198000000
1976	150000000
1977	149000000
1978	163000000
1979	254000000
1980	281000000
1981	281000000
1982	229000000
1983	132000000
1984	96000000
1985	77000000
1986	79000000
1987	97000000
1988	103000000
1989	105000000
1990	126000000
1991	162000000
1992	139000000
1993	132000000
1994	157000000
1995	168000000
1996	217000000
1997	222000000
1998	230000000
1999	263000000
2000	364000000
2001	703000000
2002	810000000
2003	1045000000
2004	1504000000
2005	1783000000
2006	2381000000
2007	2412000000
2008	2653000000
2009	2147000000
2010	3000000000
2011	3604000000
2012	3856000000
2013	4024000000
2014	4421000000
2015	3413000000
2016	3328000000
2017	4755000000
2018	6037000000
2019	4787000000
2020	3720000000
2021	5704000000
2022	8299000000
2023	8276000000