Year	current US$
1960	20535000000
1961	20959000000
1962	21616000000
1963	23275000000
1964	26484000000
1965	27374800000
1966	30404400000
1967	31561400000
1968	34564600000
1969	37962000000
1970	43218800000
1971	44142600000
1972	49812500000
1973	71428700000
1974	98597700000
1975	107695000000
1976	115105000000
1977	121348000000
1978	143814000000
1979	182065000000
1980	220913000000
1981	233896000000
1982	212441000000
1983	200593000000
1984	217998000000
1985	213222000000
1986	217426000000
1987	252853000000
1988	319109000000
1989	363546000000
1990	392743000000
1991	421588000000
1992	447215000000
1993	465539000000
1994	512207000000
1995	583021000000
1996	622662000000
1997	687711000000
1998	680522000000
1999	690793000000
2000	772147000000
2001	731026000000
2002	693255000000
2003	723792000000
2004	816546000000
2005	904308000000
2006	1036990000000
2007	1162690000000
2008	1300120000000
2009	1056910000000
2010	1277490000000
2011	1482480000000
2012	1545800000000
2013	1578430000000
2014	1620480000000
2015	1504570000000
2016	1453700000000
2017	1545610000000
2018	1664240000000
2019	1641120000000
2020	1431580000000