Year	current US$
1960	1985000000
1961	2139000000
1962	2219000000
1963	2359000000
1964	2479000000
1965	2547000000
1966	2741000000
1967	3011000000
1968	3204000000
1969	3357000000
1970	3344000000
1971	3483000000
1972	4108000000
1973	6064000000
1974	8688000000
1975	8789000000
1976	7850000000
1977	9904000000
1978	12772000000
1979	18258000000
1980	25525000000
1981	20658000000
1982	17673000000
1983	18508000000
1984	17163000000
1985	16293000000
1986	18385000000
1987	21219000000
1988	21871000000
1989	22191000000
1990	23549000000
1991	23279000000
1992	23440000000
1993	24222000000
1994	25308000000
1995	27853000000
1996	29221000000
1997	31027000000
1998	26362000000
1999	26707000000
2000	29983000000
2001	29258000000
2002	29723000000
2003	36482000000
2004	46146000000
2005	51626000000
2006	58175000000
2007	69784000000
2008	80782000000
2009	61677000000
2010	91347000000
2011	108815000000
2012	99606000000
2013	96153000000
2014	93043000000
2015	81002000000
2016	76214000000
2017	88947000000
2018	93970000000
2019	90016000000
2020	85834000000
2021	123572000000
2022	122901000000
2023	110855000000