Year	constant 2015 US$
1960	2370646836.5400085
1961	2368888196.45356
1962	2565855886.136405
1963	2829651899.104512
1964	3109275672.8506994
1965	3336140244.003264
1966	3628074498.354635
1967	3582349856.1068273
1968	3385382166.423975
1969	3466279610.4008617
1970	3724799703.109601
1971	4211289745.0687194
1972	4471435196.825001
1973	4775761508.667775
1974	5048280413.889517
1975	5080900131.37437
1976	5383689640.724073
1977	5858653667.775379
1978	6211152138.636092
1979	6513050303.601075
1980	6887415271.142199
1981	7181164023.39095
1982	7335886960.28666
1983	7178080169.668933
1984	7474471587.269287
1985	7720594077.29409
1986	8204717169.154069
1987	8905887360.250032
1988	8897896461.820732
1989	8920892169.071585
1990	9025210435.70435
1991	9005036784.585083
1992	8701216382.78944
1993	8815502462.294504
1994	9133641416.950918
1995	9144289754.981989
1996	9561920769.22616
1997	10113797776.404722
1998	10858456575.509472
1999	11296586994.517035
2000	11859726687.766937
2001	12335716528.378798
2002	12404737216.257444
2003	12670532078.994635
2004	13659137611.52823
2005	14495683157.737547
2006	15411374460.634037
2007	16714384610.171278
2008	17083688339.560976
2009	15774426999.34877
2010	15327572988.261784
2011	15610486135.636927
2012	15776524980.774536
2013	16494745020.423021
2014	16773046835.50699
2015	17517210519.091156
2016	18621440660.001873
2017	19402600566.927147
2018	20351227274.146957
2019	20729999827.290714
2020	19291243912.706753
2021	20284495162.343613
2022	22086023602.288334
2023	22983555206.469723