Year	constant 2015 US$
1965	27792988134.296402
1966	30289868813.737133
1967	32912980139.65301
1968	37249445784.66628
1969	41434429036.80854
1970	45859674697.33596
1971	55388025918.80937
1972	65763435320.52091
1973	69301712754.90503
1974	98872344034.13394
1975	121590947726.75482
1976	135995139779.59521
1977	134638199300.85498
1978	136578311003.33076
1979	135411250892.07413
1980	126606653010.46587
1981	127945200825.01044
1982	127902746032.10724
1983	128795681601.22725
1984	125744024564.91081
1985	131253685773.41806
1986	116575587881.9934
1987	112001127414.22607
1988	114800773107.17253
1989	111607966529.90547
1990	114326970205.65092
1991	122413325139.98666
1992	125865243753.3581
1993	136326377345.14363
1994	139545606959.1744
1995	138853635542.51526
1996	141136789002.25772
1997	143426719375.23465
1998	148914617062.15927
1999	147865190950.046
2000	157645989850.43073
2001	162772714038.35712
2002	168793965607.5824
2003	173777625285.99286
2004	182672993189.97003
2005	188389199303.8019
2006	197794356769.07358
2007	196612971410.8788
2008	202602201621.4725
2009	209722345383.32388
2010	214632584204.49704
2011	232162758661.33197
2012	238819267295.89206
2013	246417743665.07208
2014	251123220773.5047
2015	249357626290.4733
2016	250383154357.0578
2017	248465462705.66275
2018	254762364323.58356
2019	268648945096.10287
2020	257845750818.2335
2021	273275145342.0257
2022	282851653435.56366
2023	282354386490.8603