Year	current US$
1960	2662000000
1961	2369000000
1962	2540000000
1963	2776000000
1964	3318000000
1965	3762000000
1966	3612000000
1967	3924000000
1968	4366000000
1969	4538000000
1970	5056000000
1971	5228000000
1972	5028000000
1973	7393000000
1974	11982000000
1975	10697000000
1976	12232000000
1977	13511000000
1978	15567000000
1979	18191000000
1980	22399000000
1981	26215000000
1982	26667000000
1983	21458000000
1984	25919000000
1985	25889000000
1986	26104000000
1987	29318000000
1988	36095000000
1989	44933000000
1990	41985000000
1991	41648000000
1992	43807000000
1993	45577000000
1994	53425000000
1995	61283000000
1996	65427000000
1997	65892000000
1998	64630000000
1999	69158000000
2000	71529000000
2001	63888000000
2002	72690000000
2003	89084000000
2004	109384000000
2005	125281000000
2006	139253000000
2007	165336000000
2008	200273000000
2009	165471000000
2010	201639000000
2011	243701000000
2012	260940000000
2013	242140000000
2014	237352000000
2015	208501000000
2016	196270000000
2017	228780000000
2018	235386000000
2019	221564000000
2020	211824000000
2021	261165000000
2022	309189000000
2023	287740000000