Year	current US$
1960	1333000000
1961	1295000000
1962	1319000000
1963	1398000000
1964	1137000000
1965	1243000000
1966	1328000000
1967	1439000000
1968	1660000000
1969	2039000000
1970	2461000000
1971	2838000000
1972	3395000000
1973	5127000000
1974	8380000000
1975	8133000000
1976	9071000000
1977	10471000000
1978	13061000000
1979	17643000000
1980	24007000000
1981	27572000000
1982	28167000000
1983	28158000000
1984	28667000000
1985	26285000000
1986	25511000000
1987	32559000000
1988	43864000000
1989	49656000000
1990	60899000000
1991	66293000000
1992	72171000000
1993	85234000000
1994	102670000000
1995	124507000000
1996	131338000000
1997	132437000000
1998	101732000000
1999	111060000000
2000	134545000000
2001	116000000000
2002	116441000000
2003	136218000000
2004	173599000000
2005	200047000000
2006	238710000000
2007	263155000000
2008	319780000000
2009	245785000000
2010	310791000000
2011	365770000000
2012	379723000000
2013	373016000000
2014	377914000000
2015	297087000000
2016	283339000000
2017	327923000000
2018	370881000000
2019	359266000000
2020	329830000000
2021	406226000000
2022	475578000000
2023	423448000000