Year	constant 2015 US$
1960	864434173.7364148
1961	894841354.6577301
1962	927110247.950081
1963	986063074.5117458
1964	1034156138.863566
1965	1006231162.3426235
1966	1006231162.3426235
1967	1140581419.655081
1968	1230872371.8930538
1969	1262830871.5549452
1970	1423244629.2025757
1971	1521291761.9169714
1972	1635164659.3059494
1973	1825054181.0426474
1974	1872526576.226181
1975	1882454921.6526568
1976	1933961961.3683581
1977	2048143304.592543
1978	2086308436.6465847
1979	2341355882.8660607
1980	2303813249.585166
1981	2449644410.548528
1982	2303192757.50695
1983	2211983491.1467366
1984	2397635806.883176
1985	2287021481.50294
1986	2464263541.5056877
1987	2301252015.502777
1988	2323246343.776702
1989	2496064099.8472986
1990	2640835885.5271397
1991	2569533218.1368136
1992	2726274793.518078
1993	2784345330.5159984
1994	2926346931.4722075
1995	2999505561.989537
1996	3143481841.8691964
1997	3074325261.193111
1998	3114291503.4703717
1999	3388349115.8901734
2000	3330747234.589623
2001	3397362184.1693554
2002	3506077743.953064
2003	3541138498.419276
2004	3728818828.3753057
2005	3754920575.179909
2006	3824479873.2413335
2007	3791946770.362771
2008	3831109777.4424014
2009	3778009151.306127
2010	3889636945.8050303
2011	3994857188.4982915
2012	4051237182.5311275
2013	4243031642.795033
2014	4480790532.157959
2015	4682479893.975582
2016	4796997047.629984
2017	5053797787.505315
2018	5246466309.218987
2019	5216010336.488499
2020	4327208912.296466
2021	4115996279.0113893
2022	4939873198.829971
2023	5336367607.302078