Year	constant 2015 US$
1964	501551992.3350465
1965	618404480.8767737
1966	612333658.3701123
1967	720459180.2650477
1968	836613810.1703079
1969	819859754.8120669
1970	960105307.2708933
1971	961787741.4753176
1972	868942578.3377143
1973	923310354.2448108
1974	1340458583.2132459
1975	1373465388.3639228
1976	1781787870.6812053
1977	1511437774.2551925
1978	1316254735.703631
1979	1405600442.7357552
1980	1256707394.8015044
1981	1406800255.7276824
1982	1839949339.2012086
1983	1512565734.1240146
1984	1370899701.9918492
1985	1266979143.729049
1986	1622205749.556032
1987	1523505350.487296
1988	1332291337.1414719
1989	1590722377.8491695
1990	1728734026.6836138
1991	1645637986.8175826
1992	1566536176.0193539
1993	1528518688.9913847
1994	1707453766.7221646
1995	1687140152.4471455
1996	1903532725.1849504
1997	1809224097.6637805
1998	2038589730.5615976
1999	2137657181.0606425
2000	2180388784.1381574
2001	2189861535.2177744
2002	2282499611.796288
2003	2382172476.0624824
2004	2418651699.671422
2005	2540605055.056884
2006	2661314285.33572
2007	2879337141.9695697
2008	3069523034.0284214
2009	3142109692.7610674
2010	3250900816.9817853
2011	3349947593.2224503
2012	3593276641.7977934
2013	3665492910.869841
2014	3775624882.450397
2015	3939222661.465966
2016	4108853610.780959
2017	4224692975.452857
2018	4382260038.529514
2019	4495763212.029046
2020	4538763631.093029
2021	4689666784.237103
2022	4821291348.496644
2023	4946863702.824335