Year	current US$
1960	40000000
1961	40000000
1962	40000000
1963	40000000
1964	57000000
1965	76000000
1966	70000000
1967	70000000
1968	74000000
1969	86000000
1970	109000000
1971	108000000
1972	129000000
1973	140000000
1974	188000000
1975	253000000
1976	206000000
1977	235000000
1978	338000000
1979	399000000
1980	439000000
1981	359000000
1982	304000000
1983	311000000
1984	271000000
1985	285000000
1986	260000000
1987	295000000
1988	406000000
1989	503000000
1990	575000000
1991	703000000
1992	735000000
1993	546000000
1994	497000000
1995	475000000
1996	624000000
1997	781000000
1998	515000000
1999	673000000
2000	532000000
2001	550000000
2002	702000000
2003	793000000
2004	929000000
2005	1181000000
2006	1288000000
2007	1382000000
2008	2033000000
2009	2102000000
2010	2165000000
2011	2427000000
2012	2728000000
2013	2836000000
2014	2753000000
2015	2270000000
2016	2254000000
2017	2551000000
2018	2686000000
2019	2892000000
2020	2678000000
2021	3073000000
2022	1586000000
2023	1560000000