Year	current US$
1960	2206000000
1961	2663000000
1962	2970000000
1963	3199000000
1964	3554000000
1965	3643000000
1966	3888000000
1967	4067000000
1968	4442000000
1969	5199000000
1970	6374000000
1971	7191000000
1972	8468000000
1973	11626000000
1974	14445000000
1975	13303000000
1976	14775000000
1977	17940000000
1978	23804000000
1979	29356000000
1980	36341000000
1981	30697000000
1982	28678000000
1983	29192000000
1984	29522000000
1985	30696000000
1986	41051000000
1987	50652000000
1988	56363000000
1989	58194000000
1990	69681000000
1991	66485000000
1992	65723000000
1993	60828000000
1994	67997000000
1995	80152000000
1996	78224000000
1997	75960000000
1998	80094000000
1999	79857000000
2000	82521000000
2001	84102000000
2002	87189000000
2003	100239000000
2004	115799000000
2005	147127000000
2006	164052000000
2007	189181000000
2008	229879000000
2009	207696000000
2010	176281000000
2011	208220000000
2012	295055000000
2013	321509000000
2014	275741000000
2015	253027000000
2016	270128000000
2017	269834000000
2018	279528000000
2019	277830000000
2020	291981000000
2021	324069000000
2022	357115000000
2023	364098000000