Year	constant 2015 US$
1960	1777778605.33038
1961	1809130594.161409
1962	1801459043.0554857
1963	1935039791.5358794
1964	2022502857.0518541
1965	2134973228.2956355
1966	2299376723.4237
1967	2428072821.131483
1968	2513859360.0797696
1969	2535185501.676109
1970	2594708172.4432297
1971	2610461208.378004
1972	2801532995.823571
1973	2909600603.024704
1974	3006545183.905852
1975	2945937422.838393
1976	2911919794.2652664
1977	3093275603.476861
1978	3140120786.391706
1979	3434097408.7205305
1980	3806254349.298188
1981	4182451687.8295097
1982	4033191791.357073
1983	3684859943.3661375
1984	3749295256.087786
1985	4013216490.8466644
1986	4103529994.959139
1987	3995737791.873598
1988	4262624521.9602985
1989	3901222552.047574
1990	4132544846.2021775
1991	4435314250.79668
1992	4606657375.207021
1993	4820423496.273608
1994	4659392593.320755
1995	5048558552.97653
1996	5119434051.884012
1997	5447048408.83822
1998	5652050909.343895
1999	6018210923.030709
2000	6347041320.381144
2001	6800063497.817332
2002	6925898524.3400955
2003	7211634018.02636
2004	7541048973.260963
2005	7468657028.222174
2006	7874672057.587982
2007	8402142784.615212
2008	8703021094.111261
2009	9102421123.983286
2010	9355056091.660528
2011	9718178906.713654
2012	9973189434.281635
2013	10912509993.190104
2014	11349909934.017857
2015	12221243294.817215
2016	12342560112.136429
2017	13326199486.304276
2018	14196627415.775276
2019	14951728937.759268
2020	15546329619.952042
2021	16861940426.172806
2022	18031191452.554867
2023	19303433166.14543