Year	constant 2015 US$
1965	8436981023.837021
1966	9041164856.027931
1967	9532719323.645845
1968	9841264123.988705
1969	10184273395.489271
1970	10487489267.531849
1971	10892123610.173183
1972	11558452941.27337
1973	12120387185.401579
1974	12767131179.758862
1975	13140382331.048328
1976	13803874422.769676
1977	14739785629.523382
1978	15524349903.123783
1979	14875390870.383762
1980	12519595404.910215
1981	11803350547.225191
1982	11058739556.562542
1983	11228936354.428291
1984	11378871628.738592
1985	11448773885.004883
1986	11471061560.915873
1987	11758775195.403208
1988	11979625802.157572
1989	12095116486.423615
1990	12679661440.99824
1991	12869106686.241661
1992	13772770636.814562
1993	14574113893.432459
1994	15257940313.428768
1995	15980263628.180426
1996	16109937378.935282
1997	16615462391.643665
1998	17056150528.974619
1999	17424910257.68374
2000	17621447036.171566
2001	17776447691.370728
2002	18056056716.435886
2003	18338704970.03436
2004	18501810234.6557
2005	18997812331.293026
2006	19821747186.675247
2007	20187974224.939934
2008	20622904543.81452
2009	20188015254.525135
2010	20622904543.814518
2011	21401127375.903294
2012	22019127752.9422
2013	22499794814.16897
2014	22888906230.213356
2015	23438240000
2016	24033351541.724026
2017	24573529736.86167
2018	25166352435.577255
2019	25779775126.599277
2020	23744951345.511013
2021	26571731219.35393
2022	27315620697.16277
2023	28274665875.30024