Year	current US$
1960	113000000
1961	124000000
1962	124000000
1963	122000000
1964	133000000
1965	130000000
1966	150000000
1967	139000000
1968	153000000
1969	125000000
1970	152000000
1971	125000000
1972	216000000
1973	195000000
1974	391000000
1975	461000000
1976	485000000
1977	624000000
1978	449000000
1979	535000000
1980	477000000
1981	500000000
1982	548000000
1983	618000000
1984	634000000
1985	562000000
1986	625000000
1987	606000000
1988	591000000
1989	693000000
1990	761000000
1991	701000000
1992	673000000
1993	707000000
1994	791000000
1995	993000000
1996	988000000
1997	905000000
1998	968000000
1999	1027000000
2000	920000000
2001	1003000000
2002	1067000000
2003	1257000000
2004	1509000000
2005	1578000000
2006	1594000000
2007	1674000000
2008	2170000000
2009	2017000000
2010	2161000000
2011	2542000000
2012	2532000000
2013	2661000000
2014	2750000000
2015	2612000000
2016	2640000000
2017	2989000000
2018	3623000000
2019	4179000000
2020	3929000000
2021	5202000000
2022	5710000000
2023	5313000000