Year	constant 2015 US$
1960	11700004172.934586
1961	13163972808.449697
1962	11286859650.028482
1963	13242732801.110727
1964	14730882136.127031
1965	17542061172.422916
1966	18024984285.31818
1967	18328970221.904613
1968	20141140930.23691
1969	20836163321.61407
1970	22572337545.79976
1971	23265287305.7911
1972	21409591338.356655
1973	21679724295.641415
1974	28256874559.966022
1975	28983677299.259037
1976	27562543045.71747
1977	30186494380.161255
1978	28772268897.905743
1979	31093616050.02031
1980	31124705520.80756
1981	34068532965.795708
1982	38008605230.233025
1983	34800862722.11756
1984	36885239019.12044
1985	43022991429.65193
1986	42921432491.74692
1987	40892326365.032486
1988	45481823130.359
1989	56798390496.91752
1990	59988861076.81783
1991	56560728764.677216
1992	58539400861.00344
1993	62400022255.65112
1994	67080714801.95357
1995	78043553078.66606
1996	81701056597.50371
1997	89785009879.31697
1998	98984038846.69955
1999	104045404690.86363
2000	116580679312.2823
2001	115444186435.72621
2002	117001423483.60306
2003	132442527307.93655
2004	150321045641.99036
2005	169110830908.67484
2006	183418896242.09528
2007	202428380435.6763
2008	231752660159.33786
2009	223149858153.94183
2010	238646232148.56378
2011	263535080706.57785
2012	293318793720.7621
2013	295364480898.56305
2014	286763751524.55286
2015	291119040943.2821
2016	290170466645.7067
2017	305397398560.1725
2018	326634270616.37775
2019	327372818266.85706
2020	307837576578.40717
2021	297192541780.8532
2022	317712974254.6945
2023	347234844837.13727