Year	constant 2015 US$
1960	38382573566.7098
1961	41817534450.655754
1962	41088257170.20875
1963	43106191407.27854
1964	47672665787.20031
1965	47902290231.66755
1966	48714878350.20018
1967	48482780482.5866
1968	49967153945.26048
1969	51987506542.06273
1970	56531799185.31452
1971	54542247733.37397
1972	51175633659.79408
1973	44000870520.82006
1974	41872945363.17352
1975	39943517923.68214
1976	39879672763.04635
1977	34894269267.34789
1978	40371028680.09765
1979	41631341053.04358
1980	43319904840.99737
1981	41848775428.45474
1982	40522291859.01985
1983	41584197651.001335
1984	44579074309.61078
1985	45167496023.68991
1986	46458263206.059235
1987	47729858756.30024
1988	49581764941.36745
1989	50029487136.065025
1990	53851104167.25338
1991	53680443673.748146
1992	55798506476.521324
1993	57698457334.81972
1994	59811561322.44685
1995	62052244550.4474
1996	61992449010.86059
1997	62643481218.72307
1998	63701673209.653175
1999	66243906019.735
2000	69539634050.67488
2001	72413460172.0417
2002	73179005252.58858
2003	76144002544.59116
2004	80689387252.0751
2005	86121233851.82376
2006	92190755873.02736
2007	99044119942.54561
2008	102986358217.9644
2009	105346536211.2403
2010	110196722239.61888
2011	117350339534.4499
2012	122178438510.51373
2013	128443032335.57845
2014	133587930227.8292
2015	141358913306.13745
2016	145602868557.19904
2017	154730916434.71466
2018	169296079146.78714
2019	177516114171.10767
2020	182835916824.96164
2021	197491064682.8867
2022	212256517251.5415
2023	216394268940.0948