Year	constant 2015 US$
1960	1112757073.0213916
1961	1067519047.9516215
1962	1292889643.8305504
1963	1187170346.129208
1964	1231588841.7591965
1965	1337799857.1213937
1966	1388392332.7771275
1967	1489544141.2941906
1968	1529080482.035313
1969	1342551328.6462152
1970	1345070181.0208251
1971	1486635107.840028
1972	2701946729.302282
1973	5691160135.5807
1974	6984471817.179074
1975	5638672494.681389
1976	5787057304.694275
1977	5872512987.080354
1978	6252279696.743784
1979	6433747041.533199
1980	6458096449.9846
1981	6512541022.244324
1982	6193585314.347241
1983	6088521149.600002
1984	6255395119.417636
1985	6723145402.785679
1986	7504183976.207938
1987	6743427286.469486
1988	9266785574.623425
1989	9390334379.703485
1990	9449452085.973917
1991	11025146401.845987
1992	11633322705.098368
1993	12354930222.193947
1994	13947688557.711466
1995	15392506497.959156
1996	15065786337.227892
1997	16118274942.242966
1998	15354814101.779383
1999	16526514325.279646
2000	16945654674.693466
2001	14065304762.193773
2002	14361721661.391409
2003	15454576510.32234
2004	17027516155.50184
2005	18459039914.621357
2006	19783098885.8265
2007	19758864595.616245
2008	20621364338.45815
2009	19228028077.26308
2010	19326515690.97398
2011	20580138439.05298
2012	21591234244.711174
2013	22170692131.67359
2014	23236066809.49815
2015	22119535000
2016	21017782843.418797
2017	21568247435.337437
2018	21967389216.139515
2019	23050182615.595707
2020	22149985859.639812
2021	24234381362.299
2022	26000748250.085514
2023	26606423201.253036