Year	current US$
1960	294500000
1961	311400000
1962	328400000
1963	355550000
1964	400600000
1965	432000000
1966	469750000
1967	492650000
1968	534950000.00000006
1969	557900000
1970	616800000
1971	612000000
1972	666497000.7634966
1973	746499626.7501866
1974	887000000
1975	1012000000
1976	1149000000
1977	1358500000
1978	2590512502.2000003
1979	2961107228.0499997
1980	3497669262.9
1981	3682687203.25
1982	3965482923
1983	4234466674.8
1984	4593305779.7
1985	4872992077
1986	5301457074
1987	5572808018
1988	5128730445.922747
1989	4890508675.862069
1990	4250263246.5953307
1991	3921588410.104012
1992	4197924643.954965
1993	3873040714.537837
1994	3508948946.3419275
1995	4153568769.551616
1996	4117355168.918919
1997	4433104722.43346
1998	5082589800.590842
1999	5235583421.602788
2000	6048222362.6026535
2001	6670192368.266747
2002	6937099084.276517
2003	7306887103.016673
2004	7889262468.269016
2005	8864728561.110455
2006	10118406741.010736
2007	11667464051.526587
2008	13469782040.163654
2009	14185593090.272081
2010	15212769448.16381
2011	16594816489.721334
2012	17568470304.70843
2013	18252345178.750343
2014	18900277017.021553
2015	19262156715.542255
2016	19765270165.3224
2017	21008802114.387634
2018	22640403220.92106
2019	23900457713.94207
2020	22554571800.262154
2021	28259980417.755928
2022	31895516574.168438
2023	34680401682.04999