Year	current US$
1960	544000000
1961	655000000
1962	601000000
1963	660000000
1964	778000000
1965	897000000
1966	1013000000
1967	1015000000
1968	1043000000
1969	1232000000
1970	1556000000
1971	1803000000
1972	2204000000
1973	3015000000
1974	4496000000
1975	3839000000
1976	4220000000
1977	4744000000
1978	5237000000
1979	6534000000
1980	9309000000
1981	9800000000
1982	9572000000
1983	8240000000
1984	7961000000
1985	7652000000
1986	9649000000
1987	13967000000
1988	17866000000
1989	19072000000
1990	25263000000
1991	26113000000
1992	29581000000
1993	24212000000
1994	27061000000
1995	32610000000
1996	35202000000
1997	35055000000
1998	38435000000
1999	39974000000
2000	39952000000
2001	39490000000
2002	40156000000
2003	47200000000
2004	54948000000
2005	63921000000
2006	70684000000
2007	82129000000
2008	94416000000
2009	71663000000
2010	77749000000
2011	82896000000
2012	72429000000
2013	75719000000
2014	78389000000
2015	66914000000
2016	67954000000
2017	78763000000
2018	89060000000
2019	89538000000
2020	77895000000
2021	98200000000
2022	115080000000
2023	113475000000