Year	constant 2015 US$
1976	1022707238.0289097
1977	1117043111.9034824
1978	1163097914.524645
1979	1213104390.2554731
1980	1188616392.6752865
1981	1226626569.4638674
1982	1259667393.7814684
1983	1318701279.020433
1984	1366934973.5924165
1985	1402524509.2949343
1986	1458997526.2860186
1987	1596261758.441147
1988	1715243996.94858
1989	1829198687.9577084
1990	1940087871.4633954
1991	2038271909.7792237
1992	2176135477.008171
1993	2333509137.6074095
1994	2484963274.098055
1995	2616249268.902364
1996	2779162950.5244694
1997	2953097584.902042
1998	3141364674.1709895
1999	3308380153.833262
2000	3617166331.462905
2001	3735612426.288125
2002	3911766963.7747097
2003	4225117689.5737133
2004	4442299456.832532
2005	4702194649.874086
2006	5198770648.164109
2007	5506407303.003701
2008	5793648543.157068
2009	5956241766.945161
2010	6267801776.246992
2011	6589403908.143015
2012	6895405808.028034
2013	7184215749.0842285
2014	7532878347.738888
2015	7868510156.403769
2016	8209314368.691104
2017	8532295376.292791
2018	8897778254.421303
2019	9170251908.96332
2020	7936392466.491183
2021	8121477635.302718
2022	8958506120.929722
2023	9449391206.739727