Year	current US$
1960	4055000000
1961	4236000000
1962	4916000000
1963	5452000000
1964	6673000000
1965	8451000000
1966	9776000000
1967	10442000000
1968	12971000000
1969	15990000000
1970	19318000000
1971	23995000000
1972	29088000000
1973	37017000000
1974	55469000000
1975	55819000000
1976	67304000000
1977	81083000000
1978	98211000000
1979	102299000000
1980	130441000000
1981	151495000000
1982	138385000000
1983	146965000000
1984	169700000000
1985	177164000000
1986	210757000000
1987	231286000000
1988	264856000000
1989	273932000000
1990	287581000000
1991	314786000000
1992	339885000000
1993	362244000000
1994	397005000000
1995	443116000000
1996	410901000000
1997	420957000000
1998	387927000000
1999	417610000000
2000	479249000000
2001	403496000000
2002	416726000000
2003	471817000000
2004	565675000000
2005	594941000000
2006	646725000000
2007	714327000000
2008	781412000000
2009	580719000000
2010	769774000000
2011	823184000000
2012	798568000000
2013	715097000000
2014	690203000000
2015	624921000000
2016	645052000000
2017	698329000000
2018	738143000000
2019	705564000000
2020	641319000000
2021	756032000000
2022	746835000000
2023	717315000000