Year	constant 2015 US$
1967	480490921.3324644
1968	561041254.4036775
1969	624536711.1024618
1970	615350602.4035581
1971	541608319.6081537
1972	476843021.82427657
1973	530734343.9036158
1974	525178990.50298375
1975	409484559.4137217
1976	389096450.7708873
1977	414608865.3059774
1978	461300882.6538377
1979	560987267.8025581
1980	424341617.59903985
1981	361319220.3803225
1982	282786118.84400856
1983	216532849.26510713
1984	189158106.05791894
1985	212424355.31793192
1986	242096811.79493943
1987	221706508.366213
1988	200707539.1467135
1989	267812940.7925422
1990	196097481.8522432
1991	253052814.88902393
1992	230684309.2957775
1993	223380348.78574446
1994	214228892.7942772
1995	215704555.0496399
1996	365302307.116352
1997	166789769.11726576
1998	197824922.41864312
1999	176055867.4015583
2000	277865567.2061016
2001	422223833.04358566
2002	514078985.365613
2003	597243076.8873738
2004	564208789.0607283
2005	587931963.2429484
2006	555161654.3800453
2007	543532686.3457068
2008	558435787.4521471
2009	711042621.8329297
2010	936445327.3535347
2011	1739594377.7251067
2012	2052540049.8788154
2013	2479970778.66603
2014	2448738851.8724313
2015	2001365445.2324667
2016	2480142305.4483356
2017	2636100680.266528
2018	2331848053.7173247
2019	2167813113.4911566
2020	2330188757.3738008
2021	3416656307.0285287
2022	4647220644.410339
2023	5204156713.779752