Year	constant 2015 US$
1960	34130866264.115284
1961	37185329960.40764
1962	36536837880.67668
1963	38331242153.4203
1964	42391879537.22863
1965	42596067840.443085
1966	43380543839.4216
1967	42102059917.61826
1968	42705811398.715645
1969	44812814703.59892
1970	49262531642.17035
1971	48519057777.31612
1972	46461672131.510796
1973	40762369802.18212
1974	39461341023.81979
1975	37753290947.25261
1976	40858194396.91243
1977	37286562535.329056
1978	41718083528.23156
1979	43460785053.12233
1980	44808326742.05122
1981	43895780387.20291
1982	42582742657.90768
1983	43695547791.41493
1984	46762024329.915276
1985	47387107583.37132
1986	48864867541.78941
1987	50184111969.30258
1988	52048048924.209984
1989	52511026014.28965
1990	56325377660.4617
1991	56212418818.92492
1992	58624650045.87694
1993	60877843356.38681
1994	63095931457.72167
1995	65407965063.9206
1996	65318563898.16589
1997	66142104410.54554
1998	67311177664.84309
1999	69950247714.8302
2000	73378419451.26857
2001	76476327017.49678
2002	77647585212.66988
2003	81010390811.30501
2004	86044805992.78787
2005	92012789049.66025
2006	98566882412.12848
2007	105595550061.78374
2008	109742723316.2826
2009	112534349028.92801
2010	117886569017.86731
2011	125559508015.1588
2012	130634734771.29869
2013	137392990014.79854
2014	143267878997.32544
2015	151905105095.64285
2016	157068561823.4352
2017	167033640451.61432
2018	182195288259.04663
2019	192263040881.11563
2020	197855303918.26816
2021	213526212238.50937
2022	229272380835.55667
2023	235052680124.15985