Year	constant 2015 US$
1965	12080720588.701403
1966	12191559154.143848
1967	12501897648.79593
1968	11969896100.22284
1969	12501897648.79593
1970	11340359480.80597
1971	11518813202.582218
1972	11740460692.688887
1973	12998419990.726788
1974	13353068426.17143
1975	12986231181.183552
1976	13599135073.727673
1977	13931621872.423895
1978	14319534274.207329
1979	14729623080.006628
1980	13844883569.773933
1981	14328638159.418028
1982	15400165409.057037
1983	15712405690.57177
1984	15768704844.166756
1985	15501406601.787186
1986	15529112668.282042
1987	15105479664.42848
1988	16293702874.311565
1989	14954732770.094124
1990	16222970486.2149
1991	16887000661.696894
1992	16918748006.084328
1993	17329141370.92159
1994	18590284978.64841
1995	19622510242.350998
1996	19447851983.094162
1997	19566272807.790455
1998	21189505886.12245
1999	21692618811.453537
2000	21309553902.601646
2001	21627306249.138958
2002	21054073055.856674
2003	22479521815.692318
2004	22565691391.090183
2005	26805441680.732624
2006	26664565464.80784
2007	28941074853.82329
2008	28308474664.428158
2009	20919550469.543156
2010	29187788956.612278
2011	28478968407.416496
2012	24812257625.56124
2013	27659866051.80201
2014	28518498326.470787
2015	30669352553.986298
2016	29222696567.43235
2017	30229437336.71259
2018	25821525206.24305
2019	31356470760.268528
2020	29000518278.388256
2021	29550467660.545876
2022	28223480496.32406
2023	22715983047.19261