Year	current US$
1960	1326000000
1961	1504000000
1962	1646000000
1963	1770000000
1964	2097000000
1965	2228000000
1966	2272000000
1967	2527000000
1968	2858000000
1969	3142000000
1970	3548000000
1971	3872000000
1972	4927000000
1973	6432000000
1974	8321000000
1975	10289000000
1976	11024000000
1977	10666000000
1978	12238000000
1979	14082000000
1980	17020000000
1981	13290000000
1982	11220000000
1983	11580000000
1984	11760000000
1985	11490000000
1986	12070000000
1987	12210000000
1988	13960000000
1989	13470000000
1990	14320000000
1991	13800000000
1992	14500000000
1993	14140000000
1994	17240000000
1995	22895000000
1996	24440000000
1997	25750000000
1998	28230000000
1999	27359000000
2000	31747000000
2001	35998000000
2002	41133000000
2003	53762000000
2004	75047000000
2005	89437000000
2006	110780000000
2007	140146000000
2008	170458000000
2009	136503000000
2010	159724000000
2011	188696000000
2012	185374000000
2013	204984000000
2014	220052000000
2015	199124000000
2016	203817000000
2017	234364000000
2018	263569000000
2019	266595000000
2020	273835000000
2021	340634000000
2022	360542000000
2023	381517000000