Year	constant 2015 US$
1977	294935712.5443338
1978	310689414.9645543
1979	328094495.50826985
1980	326339898.4837699
1981	331346564.40885687
1982	345012163.6858793
1983	357544988.86394733
1984	370303857.5108279
1985	392446947.5144647
1986	420680655.4870897
1987	458951762.78689575
1988	472567905.6179835
1989	490372992.07684946
1990	510049757.10041505
1991	517116730.1603266
1992	512715297.5424751
1993	502672150.4057996
1994	511185184.9914591
1995	522070746.4742817
1996	545241471.5865589
1997	572588028.2020186
1998	639887179.2281139
1999	684028916.0179641
2000	717463922.0327804
2001	702943169.4226035
2002	727105600.3844712
2003	795918681.2184612
2004	790765503.2011338
2005	895749020.6597483
2006	859960907.0395144
2007	912620191.3490213
2008	921267656.6655675
2009	860341634.5621887
2010	855944031.1004561
2011	862490064.6560155
2012	852529700.2278142
2013	872573509.1023226
2014	936638937.7860482
2015	997007407.4074073
2016	1034291535.8551226
2017	1080200382.6086304
2018	1127312678.4280632
2019	1134939081.0314412
2020	978809798.8044876
2021	1024691294.442861
2022	1099706286.2188244
2023	1152594316.5676591