Year	constant 2015 US$
1960	8374860345.428356
1961	8817783041.881197
1962	9415589398.466331
1963	9688307209.701532
1964	10520389030.265308
1965	10786699783.624454
1966	10862482335.12237
1967	11223721122.439426
1968	11757878876.455078
1969	12398480048.311453
1970	13470549146.00508
1971	14169825540.558191
1972	13880206292.12058
1973	14559984327.808338
1974	16860428744.024054
1975	19235715676.630398
1976	20644228907.414577
1977	21411633281.87673
1978	21902760683.19738
1979	23635378039.172726
1980	25489038835.606228
1981	27367921723.83261
1982	28232898139.520817
1983	27181092202.774597
1984	27674527111.8764
1985	28790368436.661594
1986	28861041389.66635
1987	30701071677.042595
1988	29846696040.535946
1989	29889683813.243446
1990	31724560284.44725
1991	33007480566.88405
1992	33347773275.762806
1993	34403568629.79394
1994	35944182996.23701
1995	37376297003.90747
1996	37848985632.973465
1997	40104287074.04037
1998	42864996589.13965
1999	37637020817.789444
2000	37939651527.77461
2001	34392206412.55908
2002	37368858541.13901
2003	38633868047.710205
2004	38663638901.51318
2005	40291583182.29303
2006	42063537103.77536
2007	43784778721.63434
2008	46276270635.72423
2009	47040404101.77757
2010	50450686093.572296
2011	53176051275.55537
2012	55096708398.01932
2013	57972490785.587975
2014	60022118203.47939
2015	62465713000
2016	58822669373.00979
2017	62848358827.15425
2018	64154528197.055954
2019	65521634991.17297
2020	58568618546.483376
2021	65212605851.78163
2022	70016972158.05087
2023	67836509615.27807