Year	current US$
1960	95000000
1961	97000000
1962	102000000
1963	107000000
1964	82000000
1965	103000000
1966	111000000
1967	96000000
1968	116000000
1969	102000000
1970	54000000
1971	57000000
1972	80000000
1973	150000000
1974	180000000
1975	60000000
1976	10000000
1977	19000000
1978	20000000
1979	150000000
1980	180000000
1981	180000000
1982	180000000
1983	180000000
1984	180000000
1985	120000000
1986	140000000
1987	140000000
1988	127000000
1989	135000000
1990	164000000
1991	245000000
1992	443000000
1993	471000000
1994	744000000
1995	1187000000
1996	1072000000
1997	1064000000
1998	1166000000
1999	1591000000
2000	1939000000
2001	2094000000
2002	2318000000
2003	2560000000
2004	3193000000
2005	3927000000
2006	4771000000
2007	5439000000
2008	6508000000
2009	5830000000
2010	6791000000
2011	9300000000
2012	11350000000
2013	9555000000
2014	10692000000
2015	13261000000
2016	12371000000
2017	14283000000
2018	17489000000
2019	20279000000
2020	19114000000
2021	28583000000
2022	29805000000
2023	24386000000