Year	current US$
1960	10609000000
1961	11074000000
1962	11374000000
1963	12258000000
1964	12880000000
1965	13810000000
1966	14770000000
1967	14493000000
1968	15461000000
1969	17645000000
1970	19430000000
1971	22098000000
1972	23985000000
1973	29637000000
1974	38197000000
1975	43423000000
1976	45356000000
1977	55860000000
1978	67887000000
1979	86397000000
1980	110134000000
1981	102244000000
1982	96984000000
1983	91619000000
1984	93881000000
1985	101252000000
1986	107093000000
1987	131257000000
1988	145165000000
1989	152345000000
1990	185172000000
1991	184964000000
1992	190003000000
1993	181381000000
1994	205079000000
1995	237953000000
1996	258527000000
1997	280406000000
1998	273949000000
1999	272167000000
2000	283173000000
2001	274676000000
2002	281409000000
2003	308651000000
2004	349734000000
2005	393458000000
2006	453735000000
2007	446805000000
2008	477475000000
2009	358158000000
2010	420182000000
2011	510380000000
2012	478780000000
2013	546755000000
2014	510789000000
2015	465850000000
2016	410856000000
2017	440997000000
2018	486439000000
2019	460026000000
2020	399529000000
2021	470508000000
2022	532982000000
2023	520691000000