Year	current US$
1960	13113451.026957009
1961	15105205.864327949
1962	17284739.893307537
1963	19251013.928674784
1964	20101804.229713395
1965	21498351.327732593
1966	23849937.86463556
1967	25659995.81619134
1968	29079579.022535626
1969	32309412.762496572
1970	37966873.90252005
1971	50249563.474462554
1972	64762146.29904714
1973	97750513.60439351
1974	123403735.52011326
1975	119471324.17769651
1976	131905032.97625823
1977	161290322.58064514
1978	198754583.97381172
1979	250549995.2761142
1980	317282640.1621152
1981	357818098.3772698
1982	349532516.04168755
1983	383936564.54491913
1984	391451455.0133128
1985	335021053.1350539
1986	413965081.97349435
1987	568870496.342635
1988	712380262.8038683
1989	877344921.7474338
1990	1206418176.951366
1991	1298444021.1183755
1992	1439371766.4624536
1993	1574899662.61878
1994	1932061296.745007
1995	2188565175.68854
1996	2170844236.9691086
1997	2216166867.0357404
1998	2208638745.0661163
1999	2435601651.6755166
2000	2474332078.874123
2001	2486137283.434911
2002	2588756883.917803
2003	3733035798.703004
2004	4295490208.613011
2005	4491659155.314949
2006	4745797986.38149
2007	5105283703.655437
2008	5555213598.993856
2009	5896352455.339111
2010	6917200816.942354
2011	7813400216.108459
2012	7729953517.59205
2013	7867124095.179992
2014	8204444477.619024
2015	7695736347.7037
2016	8163460964.422312
2017	9174795419.95843
2018	9952833315.767931
2019	10240090743.033546
2020	9861398764.097338
2021	11297680634.833246
2022	11467677402.705257
2023	11525182554.70272