Year	constant 2015 US$
1960	33557946539.329487
1961	35476352397.69739
1962	36755869542.34625
1963	35467483642.727325
1964	36359649391.56758
1965	35946206239.70329
1966	36677752424.71582
1967	39054889144.05429
1968	42788594071.89661
1969	45209278782.12551
1970	47123311322.26558
1971	49403110949.23986
1972	52247639079.512375
1973	55575544400.09406
1974	61415461573.72613
1975	65738499765.366486
1976	69920275881.77235
1977	75511035428.88783
1978	81923624858.64574
1979	93049490283.95377
1980	104525126516.97093
1981	120605915211.88953
1982	125631161679.0516
1983	133671556026.51091
1984	138696802493.67297
1985	141711950373.9702
1986	144727098254.26746
1987	148747295427.9971
1988	155782640482.02402
1989	163823034829.4833
1990	177893724937.53708
1991	190948832946.11868
1992	197233601619.83716
1993	207025032495.50903
1994	221589944387.30856
1995	246059799663.2402
1996	267815448255.22208
1997	286306813187.1466
1998	265735118160.44775
1999	276992898557.8342
2000	282700900729.2363
2001	293747125647.51807
2002	307842517032.9654
2003	321969081188.1057
2004	337586839522.68646
2005	352003593178.4489
2006	365914192482.12335
2007	383715257096.22626
2008	406659622302.6986
2009	432209588445.86646
2010	449960544930.4268
2011	473013443601.0082
2012	498456731158.841
2013	526630450896.31586
2014	551442562532.9296
2015	578489151850.4072
2016	603630070056.9476
2017	631477435283.4589
2018	663664471737.7559
2019	696337334085.4656
2020	681893329141.2423
2021	697543756193.4802
2022	723475262428.7329
2023	757415891416.257