Year	current US$
1960	326000000
1961	331000000
1962	370000000
1963	417000000
1964	518000000
1965	584000000
1966	627000000
1967	696000000
1968	734000000
1969	823000000
1970	946000000
1971	1049000000
1972	1298000000
1973	1842000000
1974	2277000000
1975	1939000000
1976	1811000000
1977	1970000000
1978	2414000000
1979	3479000000
1980	4640000000
1981	4148000000
1982	4164000000
1983	4599000000
1984	5200000000
1985	5685000000
1986	7242000000
1987	9320000000
1988	10989000000
1989	12799000000
1990	16417000000
1991	16280000000
1992	18350000000
1993	15428000000
1994	17989000000
1995	22783000000
1996	24618000000
1997	23955000000
1998	24793000000
1999	24541000000
2000	24363000000
2001	24108000000
2002	25908000000
2003	31757000000
2004	35787000000
2005	38738000000
2006	44750000000
2007	52482000000
2008	57137000000
2009	44211000000
2010	49406000000
2011	59617000000
2012	58090000000
2013	62823000000
2014	63832000000
2015	55047000000
2016	55372000000
2017	62130000000
2018	68361000000
2019	67063000000
2020	61496000000
2021	75229000000
2022	82463000000
2023	83901000000