Year	current US$
1960	49000000
1961	47000000
1962	52000000
1963	58000000
1964	64000000
1965	68000000
1966	76000000
1967	77000000
1968	84000000
1969	97000000
1970	118000000
1971	124000000
1972	141000000
1973	168000000
1974	204000000
1975	217000000
1976	237000000
1977	273000000
1978	314000000
1979	425000000
1980	524000000
1981	571000000
1982	551000000
1983	616000000
1984	657000000
1985	607000000
1986	587000000
1987	515000000
1988	582000000
1989	673000000
1990	704000000
1991	699000000
1992	524000000
1993	577000000
1994	615000000
1995	771000000
1996	833000000
1997	996000000
1998	1010000000
1999	1108000000
2000	1156000000
2001	1087000000
2002	1039000000
2003	1195000000
2004	1413000000
2005	1604000000
2006	1697000000
2007	1746000000
2008	1920000000
2009	1449000000
2010	1569000000
2011	1805000000
2012	1780000000
2013	1759000000
2014	1739000000
2015	1618000000
2016	1622000000
2017	1600000000
2018	1578000000
2019	1581000000
2020	1502000000
2021	1674000000
2022	2151000000
2023	2092000000