Year	constant 2015 US$
1970	6942172237.366129
1971	7042439848.838583
1972	7579356120.122063
1973	8472058928.268741
1974	9057491922.916792
1975	8782565101.623507
1976	9857474887.683863
1977	10090354054.826355
1978	10256388174.197681
1979	10846133952.324596
1980	10985214180.587654
1981	11518895837.760859
1982	12263893829.82025
1983	12185188600.981081
1984	12531273280.15355
1985	12780324406.080257
1986	13312927893.884872
1987	14248757425.309067
1988	14635239075.261673
1989	15331610280.543259
1990	15066619783.310385
1991	15223324270.886093
1992	16267441609.179277
1993	15756828355.132544
1994	15458382396.695532
1995	15066619792.528172
1996	15749785865.75732
1997	15855428660.241194
1998	15417005479.972578
1999	15490957072.267942
2000	16429429234.816395
2001	16401016670.36232
2002	16871164160.02688
2003	17888655468.424744
2004	18724949673.460007
2005	19210643672.733852
2006	20331749325.437454
2007	22126389235.267044
2008	21364272791.098907
2009	19168918374.98663
2010	21928501490.464466
2011	23429435200.771023
2012	23654588484.837006
2013	24124209050.122726
2014	24618170479.841988
2015	24974817526.284767
2016	24062769012.06352
2017	25479235149.253845
2018	25512009492.269096
2019	26007721430.374752
2020	25376815327.331192
2021	25348905925.85727
2022	25367597543.358154
2023	25551399387.63189