Year	constant 2015 US$
1964	76976317.22224027
1965	162686658.06925377
1966	154974683.4495372
1967	131520392.31465663
1968	123520724.67943412
1969	267394064.93354404
1970	471151003.30283344
1971	553465837.3690977
1972	343485086.1987564
1973	400122551.1357491
1974	448115733.5399161
1975	583819024.7373313
1976	644662264.7755632
1977	674839210.2927
1978	696864024.8618214
1979	695980559.8915924
1980	770101937.5792226
1981	739287142.8499582
1982	663524668.705811
1983	671247461.8957939
1984	587096301.6226077
1985	462221286.0845334
1986	570551585.9811226
1987	701064393.9393245
1988	700806496.1458143
1989	728441060.3333536
1990	715383325.3301158
1991	709910852.550871
1992	700480810.8566254
1993	682209968.6042231
1994	768998541.7936788
1995	743736747.9132794
1996	781238855.9938985
1997	980845882.2206694
1998	1043226049.6042888
1999	1110698159.7165773
2000	1226237194.530673
2001	1261114391.562464
2002	1291842018.4188445
2003	1446513255.312535
2004	1436360670.0137343
2005	1469324871.9190848
2006	1741705513.0887563
2007	1824000393.2345614
2008	1924735205.5718892
2009	2053778119.99699
2010	2160620093.191638
2011	2299236430.4983497
2012	2357608268.5539856
2013	2469779963.722715
2014	2730546385.3365726
2015	2867173474.051493
2016	2879185045.873932
2017	3210625979.942275
2018	3465362624.016247
2019	3649149781.362887
2020	3494831376.1456056
2021	3660563463.917331
2022	3957453061.50305
2023	4024068878.374201