Year	current US$
1960	1629000000
1961	1460000000
1962	1476000000
1963	1771000000
1964	2281000000
1965	2563000000
1966	2395000000
1967	2780000000
1968	2789000000
1969	3189000000
1970	3843000000
1971	4364000000
1972	3948000000
1973	5163000000
1974	7856000000
1975	8293000000
1976	7285000000
1977	6270000000
1978	7615000000
1979	8989000000
1980	19598000000
1981	22925000000
1982	18407000000
1983	15813000000
1984	15955000000
1985	11319000000
1986	12992000000
1987	15277000000
1988	18723000000
1989	18498000000
1990	18399000000
1991	18829000000
1992	19738000000
1993	19991000000
1994	23363000000
1995	30546000000
1996	30182000000
1997	32998000000
1998	29242000000
1999	26696000000
2000	29695000000
2001	28248000000
2002	29267000000
2003	39748000000
2004	53466000000
2005	62304000000
2006	78715000000
2007	88450000000
2008	101640000000
2009	74054000000
2010	96835000000
2011	124430000000
2012	127154000000
2013	126330000000
2014	121950000000
2015	104651000000
2016	91692000000
2017	101576000000
2018	113971000000
2019	107539000000
2020	84062000000
2021	113989000000
2022	136207000000
2023	130747000000