Year	constant 2015 US$
1968	1753913383.5645034
1969	1853202328.347536
1970	1833416391.6987221
1971	1905621047.6326158
1972	2014060274.4930422
1973	2128847163.413591
1974	2231203214.1330667
1975	2383018131.7376637
1976	2565777901.8853583
1977	3959618695.9205956
1978	3480899182.2196884
1979	3026512373.0825844
1980	3416629103.8609476
1981	3573204768.010637
1982	3848005638.030108
1983	4188927987.8425217
1984	4997990414.588972
1985	5914169638.59999
1986	6801784383.340457
1987	7923733652.467114
1988	8789660551.835495
1989	9411466947.808332
1990	9679655669.848509
1991	9966358406.23071
1992	10567534900.508146
1993	10937550701.429455
1994	10696868514.983143
1995	10850534834.021942
1996	10792876903.642496
1997	11170298310.300615
1998	11289581459.847084
1999	11529734674.455053
2000	11989146716.056423
2001	12023000913.71041
2002	12167674711.497368
2003	12275584966.519451
2004	12701407296.386003
2005	12802176431.590448
2006	12945263313.862377
2007	13195466993.398874
2008	13360506206.96206
2009	13528719251.555307
2010	14886060988.74484
2011	15664972020.70571
2012	16159296203.63775
2013	16883987622.168406
2014	17748592091.940926
2015	18564266666.666668
2016	19545244940.87477
2017	20401121375.314625
2018	20837258656.028873
2019	21282388457.994965
2020	20940672650.425037
2021	21396646375.07717
2022	22257283556.06212
2023	23177165582.94154