Year	current US$
1960	5200000
1961	6800000
1962	7300000
1963	9900000
1964	9600000
1965	11340000
1966	14040000
1967	14490000
1968	26560000
1969	29530000
1970	36780000
1971	42320000
1972	63320000
1973	86640000
1974	131350000
1975	183740000
1976	218030000
1977	295340000
1978	354670000
1979	429380000
1980	485880000
1981	467440000
1982	559350000
1983	583570000
1984	540380000
1985	574460000
1986	797970000
1987	890280000
1988	984740000
1989	917480000
1990	1204830000
1991	1177570000
1992	1272930000
1993	1014210000
1994	1136740000
1995	1244430000
1996	1311240000
1997	1306110000
1998	1321490000
1999	1369790000
2000	1263560000
2001	1345910000
2002	1696090000
2003	2043870000
2004	2198290000
2005	2793640000
2006	2945240000
2007	3734830000
2008	4005760000
2009	4081230000
2010	4371560000
2011	4755590000
2012	4752990000
2013	5581360000
2014	5085940000
2015	4277660000
2016	4380080000
2017	4124979999.9999995
2018	4257620000
2019	4297830000
2020	4195689999.9999995
2021	4672970000
2022	5160980000