Year	constant 2015 US$
1976	511686258.9908159
1977	544685449.8249158
1978	584443511.7307715
1979	547468513.9069443
1980	445290295.02147746
1981	413483843.0993588
1982	355437075.4261393
1983	366777209.35675997
1984	389288224.9103167
1985	428217048.18885547
1986	513691201.5154593
1987	645202919.8282121
1988	905154238.2134709
1989	848426253.2450272
1990	1046039128.1852034
1991	1027628835.6943625
1992	1069761619.9336478
1993	1121110177.9069905
1994	1262370059.2027397
1995	1056603737.7609254
1996	1210867890.9712968
1997	1342852483.151423
1998	1290481239.8622806
1999	1588582404.8792763
2000	1467681304.0974226
2001	1534582793.7927887
2002	1534661983.4346023
2003	1740943817.0484054
2004	1755850440.2541702
2005	1706745857.654275
2006	2005426938.34066
2007	2124548031.470351
2008	2152841634.122803
2009	2345016462.872832
2010	2329197970.589725
2011	2361803454.3814692
2012	2342617245.1627417
2013	2281657641.8957515
2014	2145738246.3847346
2015	2029084311.9860113
2016	2104514643.5710618
2017	2200662458.3851604
2018	2442488090.967023
2019	2561947979.7841973
2020	1900956662.4345386
2021	2165142182.459585
2022	2334258188.1603017
2023	3057146441.527483