Year	current US$
1960	976000000
1961	1026000000
1962	1149000000
1963	1306000000
1964	1495000000
1965	1521000000
1966	1566000000
1967	1776000000
1968	1803000000
1969	1928000000
1970	2506000000
1971	2990000000
1972	3154000000
1973	3919000000
1974	5576000000
1975	7176000000
1976	5529000000
1977	6522000000
1978	7990000000
1979	8682000000
1980	9190000000
1981	9160000000
1982	8870000000
1983	8555000000
1984	8130000000
1985	8185000000
1986	9595000000
1987	9860000000
1988	9370000000
1989	8865000000
1990	10340000000
1991	11370000000
1992	11080000000
1993	12530000000
1994	14555000000
1995	15465000000
1996	18145000000
1997	21235000000
1998	25705000000
1999	28015000000
2000	32172000000
2001	33617000000
2002	37755000000
2003	47808000000
2004	60538000000
2005	66552000000
2006	78262000000
2007	95565000000
2008	108940000000
2009	77761000000
2010	88178000000
2011	102440000000
2012	95176000000
2013	100111000000
2014	104897000000
2015	91973000000
2016	93880000000
2017	107519000000
2018	120741000000
2019	120590000000
2020	116020000000
2021	142917000000
2022	165136000000
2023	155966000000